diff --git a/Conditionals.lua b/Conditionals.lua
index 80b69e1..6adbe9f 100644
--- a/Conditionals.lua
+++ b/Conditionals.lua
@@ -338,6 +338,38 @@ function CleveRoids.ValidateComboPoints(operator, amount)
     return false
 end
 
+-- Validates swing timer percentage for SP_SwingTimer addon integration
+-- operator: Comparison operator (>, <, =, >=, <=, ~=)
+-- amount: Percentage of swing time (e.g., 20 means 20% of attack speed)
+-- returns: True if st_timer [operator] (attackSpeed * percent/100)
+function CleveRoids.ValidateSwingTimer(operator, amount)
+    if not operator or not amount then return false end
+
+    -- Check if SP_SwingTimer is loaded by checking for st_timer global
+    if st_timer == nil then
+        -- Only show error once per session
+        if not CleveRoids._swingTimerErrorShown then
+            DEFAULT_CHAT_FRAME:AddMessage("|cffff0000[SuperCleveRoidMacros]|r The [swingtimer] conditional requires the SP_SwingTimer addon. Get it at: https://github.com/jrc13245/SP_SwingTimer", 1, 0.5, 0.5)
+            CleveRoids._swingTimerErrorShown = true
+        end
+        return false
+    end
+
+    -- Get player's attack speed (main hand)
+    local attackSpeed = UnitAttackSpeed("player")
+    if not attackSpeed or attackSpeed <= 0 then return false end
+
+    -- Calculate threshold: percentage of swing time
+    local threshold = attackSpeed * (amount / 100)
+
+    -- Compare current swing timer against threshold
+    if CleveRoids.operators[operator] then
+        return CleveRoids.comparators[operator](st_timer, threshold)
+    end
+
+    return false
+end
+
 function CleveRoids.ValidateLevel(unit, operator, amount)
     if not unit or not operator or not amount then return false end
     local level = UnitLevel(unit)
@@ -2220,5 +2252,39 @@ CleveRoids.Keywords = {
         end
 
         return not CleveRoids.CheckImmunity(conditionals.target or "target", checkValue)
+    end,
+
+    -- SP_SwingTimer integration conditionals
+    -- Checks if swing timer is at a percentage of attack speed
+    -- Usage: [swingtimer:>20] = st_timer > UnitAttackSpeed("player") * 0.2
+    swingtimer = function(conditionals)
+        return And(conditionals.swingtimer, function(args)
+            if type(args) ~= "table" then return false end
+            return CleveRoids.ValidateSwingTimer(args.operator, args.amount)
+        end)
+    end,
+
+    -- Alias for swingtimer
+    stimer = function(conditionals)
+        return And(conditionals.stimer, function(args)
+            if type(args) ~= "table" then return false end
+            return CleveRoids.ValidateSwingTimer(args.operator, args.amount)
+        end)
+    end,
+
+    -- Negated swingtimer
+    noswingtimer = function(conditionals)
+        return And(conditionals.noswingtimer, function(args)
+            if type(args) ~= "table" then return false end
+            return not CleveRoids.ValidateSwingTimer(args.operator, args.amount)
+        end)
+    end,
+
+    -- Alias for noswingtimer
+    nostimer = function(conditionals)
+        return And(conditionals.nostimer, function(args)
+            if type(args) ~= "table" then return false end
+            return not CleveRoids.ValidateSwingTimer(args.operator, args.amount)
+        end)
     end
 }
diff --git a/README.md b/README.md
index 6ac65c4..5e983bf 100644
--- a/README.md
+++ b/README.md
@@ -203,6 +203,8 @@ The addon automatically applies talent-based duration modifications to debuffs.
 **Calculation Order:** `final_duration = (base + combo_points) + talent_modifier`
 
 **Supported Talent Modifiers:**
+- **Warrior:**
+  - **Booming Voice** (5 ranks): +12% per rank to Demoralizing Shout duration (60% at rank 5)
 - **Rogue:**
   - **Taste for Blood** (3 ranks): +2s per rank to Rupture duration
   - **Improved Gouge** (3 ranks): +0.5s per rank to Gouge duration
@@ -236,10 +238,10 @@ The **Carnage** talent (Feral Combat tree, 2/2 required) causes **Ferocious Bite
 - Rip/Rake must already be active on the target
 
 ### Equipment Modifiers
-The addon supports item-based duration modifications. 
+The addon supports item-based duration modifications.
 **IF YOUR EQUIPMENT DEBUFF DURATION MODIFIER IS MISSING, PLEASE MAKE A BUG REPORT!!!**
 
-**Calculation Order:** `final_duration = ((base + combo_points) + talent_modifier) × equipment_modifier`
+**Calculation Order:** `final_duration = (((base + combo_points) + talent_modifier) × equipment_modifier) + set_bonus`
 
 **Supported Equipment Modifiers:**
 - **Idol of Savagery** (Item ID: 61699, Druid Idol): Reduces the time between periodic ticks and the duration of Rake and Rip by 10% (×0.9 multiplier)
@@ -250,6 +252,28 @@ The addon supports item-based duration modifications.
 3. Talent modifier: 18s + 0 = 18s (if no talent)
 4. Equipment modifier: 18s × 0.9 = **16.2s final**
 
+### Set Bonus Modifiers
+The addon supports set bonus duration modifications by counting equipped set pieces.
+**IF YOUR SET BONUS DEBUFF DURATION MODIFIER IS MISSING, PLEASE MAKE A BUG REPORT!!!**
+
+**How It Works:**
+The system counts how many pieces from a set are equipped and applies the modifier when the threshold is met.
+
+**Supported Set Bonus Modifiers:**
+- **Druid:**
+  - **Dreamwalker Regalia (4/9)**: +3s to Moonfire duration, +2s to Insect Swarm duration
+    - Item IDs: 47372, 47373, 47374, 47375, 47376, 47377, 47378, 47379, 47380
+  - **Haruspex's Garb (3/5)**: +5s to Faerie Fire duration (non-feral only)
+    - Item IDs: 19613, 19955, 19840, 19839, 19838
+
+**Example:** Moonfire with Dreamwalker Regalia 4-set:
+1. Base duration: 18s
+2. Set bonus modifier: 18s + 3s = **21s final**
+
+**Example:** Insect Swarm with Dreamwalker Regalia 4-set:
+1. Base duration: 18s
+2. Set bonus modifier: 18s + 2s = **20s final**
+
 ### Immunity Tracking System
 The addon automatically learns and tracks NPC immunities from combat log messages:
 
@@ -442,6 +466,7 @@ The addon automatically learns and tracks NPC immunities from combat log message
 | queuedspell         | [queuedspell]<br/>[queuedspell:X] |  | * | if the player has any or a specific spell queued with nampower. |
 | onswingpending         | [onswingpending] |  | * | If the player has a on swing spell pending.|
 | mhimbue/ohimbue         | [mhimbue:Flametongue]<br/>[ohimbue] |  | * | If the player has weapon imbue on their mh/oh.|
+| swingtimer/stimer         | [swingtimer:>20]<br/>[stimer:<=50] | * | * | If the swing timer is at a percentage of attack speed. Requires [SP_SwingTimer](https://github.com/jrc13245/SP_SwingTimer) addon. See [below](#swing-timer-integration) for details.|
 
 ### Unit Based
 ### The default @unitid is usually @target if you don't specify one
@@ -589,6 +614,65 @@ The addon automatically learns and tracks NPC immunities from combat log message
 * ShaguTweaks
 
 
+### Swing Timer Integration
+The addon integrates with [SP_SwingTimer](https://github.com/jrc13245/SP_SwingTimer) to provide swing timer conditionals for abilities like Slam that benefit from being cast at specific points in your swing cycle.
+
+**Requirements:**
+- [SP_SwingTimer](https://github.com/jrc13245/SP_SwingTimer) addon must be installed
+- If SP_SwingTimer is not loaded, the conditional will return false and display an error message once
+
+**How It Works:**
+The conditional compares the current swing timer (`st_timer`) against a percentage of your attack speed.
+
+`[swingtimer:>20]` checks if `st_timer > UnitAttackSpeed("player") * 0.2`
+
+This means "cast if more than 20% of my swing time remains."
+
+**Syntax:**
+- `[swingtimer:>X]` - True if swing timer > X% of attack speed
+- `[swingtimer:<X]` - True if swing timer < X% of attack speed
+- `[swingtimer:>=X]` - True if swing timer >= X% of attack speed
+- `[swingtimer:<=X]` - True if swing timer <= X% of attack speed
+- `[stimer:>X]` - Alias for swingtimer
+
+**Negation:**
+- `[noswingtimer:<80]` - True if NOT (swing timer < 80% of attack speed)
+- `[nostimer:>20]` - Alias for noswingtimer
+
+**Example Macros:**
+
+```lua
+-- Cast Slam only if more than 20% of swing time remains
+-- Equivalent to: /run if st_timer>UnitAttackSpeed("player")*0.2 then CastSpellByName("Slam") end
+#showtooltip Slam
+/cast [swingtimer:>20] Slam
+```
+
+```lua
+-- Heroic Strike queue management - only queue if swing timer is low
+#showtooltip Heroic Strike
+/cast [stimer:<30] Heroic Strike
+```
+
+```lua
+-- Complex rotation with swing timer awareness
+#showtooltip
+/cast [swingtimer:>25] Slam
+/cast Heroic Strike
+```
+
+**Understanding the Percentage:**
+- 100% = Full swing time (just attacked, full cooldown remaining)
+- 50% = Half of swing time remaining
+- 20% = Only 20% of swing time left before next auto-attack
+- 0% = About to swing
+
+For a warrior with a 3.5 second weapon:
+- `[swingtimer:>20]` = True if st_timer > 0.7 seconds
+- `[swingtimer:>50]` = True if st_timer > 1.75 seconds
+
+---
+
 ### HealComm Support
 This addon uses [SuperWoW](https://github.com/balakethelock/SuperWoW)'s CastSpellByName which is not compatible with the standard HealComm-1.0 library.  MarcelineVQ has an updated version of [LunaUnitFrames](https://github.com/MarcelineVQ/LunaUnitFrames) where they added [SuperWoW](https://github.com/balakethelock/SuperWoW) support to the HealComm-1.0 library.  If you use [SuperWoW](https://github.com/balakethelock/SuperWoW) and want proper HealComm support with your macros, you need to do one or both of the following:  
 
diff --git a/Utility.lua b/Utility.lua
index 6807eb6..bc14225 100644
--- a/Utility.lua
+++ b/Utility.lua
@@ -1361,6 +1361,11 @@ ev:SetScript("OnEvent", function()
           if duration and CleveRoids.ApplyEquipmentModifier then
             duration = CleveRoids.ApplyEquipmentModifier(spellID, duration)
           end
+
+          -- Apply set bonus modifiers for non-combo spells
+          if duration and CleveRoids.ApplySetBonusModifier then
+            duration = CleveRoids.ApplySetBonusModifier(spellID, duration)
+          end
         end
 
         -- DEBUG: Show what duration we calculated
@@ -1693,6 +1698,17 @@ CleveRoids.talentModifiers[9827] = { tab = 2, id = 4, talent = "Brutal Impact",
 -- Carnage is a refresh mechanic: Ferocious Bite at 5 CP refreshes Rip/Rake to their original duration
 -- This is handled separately in the Carnage refresh logic (lines 1125-1192)
 
+-- WARRIOR talent modifiers
+-- Booming Voice: Increases duration of Battle Shout and Demoralizing Shout by 12% per rank (5 ranks max)
+-- Talent Position: Tab 2 (Fury), Talent 1
+-- Talent Spell IDs: 12321 (Rank 1), 12835 (Rank 2), 12836 (Rank 3), 12837 (Rank 4), 12838 (Rank 5)
+local boomingVoiceModifier = function(base, rank) return base * (1 + rank * 0.12) end  -- 12% per rank, 60% at rank 5
+CleveRoids.talentModifiers[1160] = { tab = 2, id = 1, talent = "Booming Voice", modifier = boomingVoiceModifier }   -- Demoralizing Shout Rank 1
+CleveRoids.talentModifiers[6190] = { tab = 2, id = 1, talent = "Booming Voice", modifier = boomingVoiceModifier }   -- Demoralizing Shout Rank 2
+CleveRoids.talentModifiers[11554] = { tab = 2, id = 1, talent = "Booming Voice", modifier = boomingVoiceModifier }  -- Demoralizing Shout Rank 3
+CleveRoids.talentModifiers[11555] = { tab = 2, id = 1, talent = "Booming Voice", modifier = boomingVoiceModifier }  -- Demoralizing Shout Rank 4
+CleveRoids.talentModifiers[11556] = { tab = 2, id = 1, talent = "Booming Voice", modifier = boomingVoiceModifier }  -- Demoralizing Shout Rank 5
+
 -- Function to get talent rank
 -- Supports both position-based (tab, id) and name-based lookup
 -- Position-based is preferred as it's more reliable and locale-independent (like Cursive addon)
@@ -1993,6 +2009,127 @@ function CleveRoids.RegisterEquipmentModifier(spellID, slotID, modifierFunc)
     return true
 end
 
+-- ============================================================================
+-- SET BONUS MODIFIER SYSTEM
+-- ============================================================================
+
+-- Database of set bonus modifiers for debuff durations
+-- Structure: [spellID] = { items = {itemID1, itemID2, ...}, threshold = X, modifier = function(baseDuration) }
+CleveRoids.setbonusModifiers = CleveRoids.setbonusModifiers or {}
+
+-- Function to count how many items from a set are currently equipped
+function CleveRoids.CountEquippedSetItems(items)
+    if not items or type(items) ~= "table" then return 0 end
+
+    local count = 0
+    -- Check all equipment slots (1-19)
+    for slot = 1, 19 do
+        local itemLink = GetInventoryItemLink("player", slot)
+        if itemLink then
+            local _, _, itemID = string.find(itemLink, "item:(%d+)")
+            if itemID then
+                itemID = tonumber(itemID)
+                -- Check if this item is in the set
+                for _, setItemID in ipairs(items) do
+                    if itemID == setItemID then
+                        count = count + 1
+                        break
+                    end
+                end
+            end
+        end
+    end
+
+    return count
+end
+
+-- Apply set bonus modifiers to a debuff duration
+-- Parameters:
+--   spellID: The spell ID
+--   baseDuration: The base duration (after combo points, talents, and equipment)
+-- Returns: Modified duration, or baseDuration if no set bonus modifier applies
+function CleveRoids.ApplySetBonusModifier(spellID, baseDuration)
+    if not spellID or not baseDuration then
+        return baseDuration
+    end
+
+    local modifier = CleveRoids.setbonusModifiers[spellID]
+    if not modifier then
+        return baseDuration
+    end
+
+    -- Check if player has enough set pieces equipped
+    local equippedCount = CleveRoids.CountEquippedSetItems(modifier.items)
+    if equippedCount < modifier.threshold then
+        return baseDuration
+    end
+
+    local modifiedDuration = modifier.modifier(baseDuration)
+
+    if modifiedDuration ~= baseDuration and CleveRoids.debug then
+        DEFAULT_CHAT_FRAME:AddMessage(
+            string.format("|cff00ffff[Set Bonus Modifier]|r %s (ID:%d): %.1fs -> %.1fs (%d/%d pieces)",
+                SpellInfo(spellID) or "Unknown", spellID, baseDuration, modifiedDuration,
+                equippedCount, modifier.threshold)
+        )
+    end
+
+    return modifiedDuration
+end
+
+-- Helper function to register a set bonus modifier
+-- Usage: CleveRoids.RegisterSetBonusModifier(spellID, itemsTable, threshold, modifierFunction)
+function CleveRoids.RegisterSetBonusModifier(spellID, items, threshold, modifierFunc)
+    if not spellID or not items or not threshold or not modifierFunc then
+        return false
+    end
+
+    CleveRoids.setbonusModifiers[spellID] = {
+        items = items,
+        threshold = threshold,
+        modifier = modifierFunc
+    }
+
+    return true
+end
+
+-- DRUID set bonus modifiers
+-- Dreamwalker Regalia (4/9): Increases Moonfire duration by 3 seconds and Insect Swarm by 2 seconds
+-- Item IDs: 47372, 47373, 47374, 47375, 47376, 47377, 47378, 47379, 47380
+local dreamwalkerItems = { 47372, 47373, 47374, 47375, 47376, 47377, 47378, 47379, 47380 }
+local dreamwalkerMoonfireModifier = function(base) return base + 3 end
+local dreamwalkerInsectSwarmModifier = function(base) return base + 2 end
+
+-- Moonfire (all ranks)
+CleveRoids.setbonusModifiers[8921] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 1
+CleveRoids.setbonusModifiers[8924] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 2
+CleveRoids.setbonusModifiers[8925] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 3
+CleveRoids.setbonusModifiers[8926] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 4
+CleveRoids.setbonusModifiers[8927] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 5
+CleveRoids.setbonusModifiers[8928] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 6
+CleveRoids.setbonusModifiers[8929] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 7
+CleveRoids.setbonusModifiers[9833] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 8
+CleveRoids.setbonusModifiers[9834] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 9
+CleveRoids.setbonusModifiers[9835] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerMoonfireModifier }   -- Moonfire Rank 10
+
+-- Insect Swarm (all ranks)
+CleveRoids.setbonusModifiers[5570] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerInsectSwarmModifier }   -- Insect Swarm Rank 1
+CleveRoids.setbonusModifiers[24974] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerInsectSwarmModifier }  -- Insect Swarm Rank 2
+CleveRoids.setbonusModifiers[24975] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerInsectSwarmModifier }  -- Insect Swarm Rank 3
+CleveRoids.setbonusModifiers[24976] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerInsectSwarmModifier }  -- Insect Swarm Rank 4
+CleveRoids.setbonusModifiers[24977] = { items = dreamwalkerItems, threshold = 4, modifier = dreamwalkerInsectSwarmModifier }  -- Insect Swarm Rank 5
+
+-- Haruspex's Garb (3/5): Increases Faerie Fire duration by 5 seconds
+-- Item IDs: 19613, 19955, 19840, 19839, 19838
+local haruspexItems = { 19613, 19955, 19840, 19839, 19838 }
+local haruspexFaerieFireModifier = function(base) return base + 5 end
+
+-- Faerie Fire (non-feral, all ranks)
+CleveRoids.setbonusModifiers[770] = { items = haruspexItems, threshold = 3, modifier = haruspexFaerieFireModifier }    -- Faerie Fire Rank 1
+CleveRoids.setbonusModifiers[778] = { items = haruspexItems, threshold = 3, modifier = haruspexFaerieFireModifier }    -- Faerie Fire Rank 2
+CleveRoids.setbonusModifiers[9749] = { items = haruspexItems, threshold = 3, modifier = haruspexFaerieFireModifier }   -- Faerie Fire Rank 3
+CleveRoids.setbonusModifiers[9907] = { items = haruspexItems, threshold = 3, modifier = haruspexFaerieFireModifier }   -- Faerie Fire Rank 4
+
 -- ============================================================================
 -- IMMUNITY TRACKING SYSTEM
 -- ============================================================================