diff --git a/libs/libdebuff.lua b/libs/libdebuff.lua
index c0515dfa..acb4273a 100644
--- a/libs/libdebuff.lua
+++ b/libs/libdebuff.lua
@@ -312,16 +312,6 @@ local function GetComboPointData(spellName)
   return nil, nil
 end
 
--- Player GUID Cache
-local playerGUID = nil
-local function GetPlayerGUID()
-  if not playerGUID and UnitGUID then
-    local guid = UnitGUID("player")
-    playerGUID = guid
-  end
-  return playerGUID
-end
-
 -- Debug Stats
 pfUI.libdebuff_debugstats = pfUI.libdebuff_debugstats or {
   enabled = false,
@@ -461,7 +451,7 @@ local function GetSlotCaster(guid, auraSlot, spellName)
   end
   
   -- Fallback: Check ownDebuffs
-  local myGuid = GetPlayerGUID()
+  local myGuid = GetPlayerGuid()
   if ownDebuffs[guid] and ownDebuffs[guid][spellName] then
     return myGuid, true
   end
@@ -798,7 +788,7 @@ function libdebuff:GetBestAuraCast(guid, spellName)
     local data = ownDebuffs[guid][spellName]
     local timeleft = (data.startTime + data.duration) - GetTime()
     if timeleft > 0 then
-      return data.startTime, data.duration, timeleft, data.rank, GetPlayerGUID()
+      return data.startTime, data.duration, timeleft, data.rank, GetPlayerGuid()
     end
   end
   
@@ -834,7 +824,7 @@ function libdebuff:GetEnhancedDebuffs(targetGUID)
   local result = {}
   
   if ownDebuffs[targetGUID] then
-    local myGuid = GetPlayerGUID()
+    local myGuid = GetPlayerGuid()
     for spellName, data in pairs(ownDebuffs[targetGUID]) do
       local timeleft = (data.startTime + data.duration) - GetTime()
       if timeleft > 0 then
@@ -883,7 +873,7 @@ if hasNampower then
       -- Carnage triggered! Refresh Rip & Rake
       local guid = carnageState.targetGuid
       local refreshTime = GetTime()
-      local myGuid = GetPlayerGUID()
+      local myGuid = GetPlayerGuid()
       
       -- Refresh in ownDebuffs - only if timer still active
       if ownDebuffs[guid] then
@@ -976,14 +966,8 @@ if hasNampower then
           end
         end
       end
-
-    elseif event == "PLAYER_ENTERING_WORLD" then
-      GetPlayerGUID()
+    elseif event == "PLAYER_ENTERING_WORLD" or event == "PLAYER_TALENT_UPDATE" then
       UpdateCarnageRank()
-      
-    elseif event == "PLAYER_TALENT_UPDATE" then
-      UpdateCarnageRank()
-      
     elseif event == "UNIT_HEALTH" then
       local guid = arg1
       if guid and UnitIsDead and UnitIsDead(guid) then
@@ -1078,7 +1062,7 @@ if hasNampower then
         local selfdebuffMode = pfUI_config and pfUI_config.buffbar and
           pfUI_config.buffbar.tdebuff and pfUI_config.buffbar.tdebuff.selfdebuff == "1"
         if selfdebuffMode then
-          local myGuid2 = GetPlayerGUID()
+          local myGuid2 = GetPlayerGuid()
           if casterGuid == myGuid2 then
             local duration = libdebuff:GetDuration(spellName, castRank) or 0
             if duration > 0 then
@@ -1108,7 +1092,7 @@ if hasNampower then
       end
       
       -- Store rank for our casts
-      local myGuid = GetPlayerGUID()
+      local myGuid = GetPlayerGuid()
       if casterGuid == myGuid then
         lastCastRanks[spellName] = {
           rank = castRank,
@@ -1233,7 +1217,7 @@ if hasNampower then
       
       local duration = durationMs and (durationMs / 1000) or 0
       local startTime = GetTime()
-      local myGuid = GetPlayerGUID()
+      local myGuid = GetPlayerGuid()
       local isOurs = (myGuid and casterGuid == myGuid)
       
       if debugStats.enabled and isOurs then
@@ -1365,15 +1349,12 @@ if hasNampower then
       
         -- Notify unitframes of debuff updates (UNIT_AURA doesn't fire on refreshes!)
         -- Check player
-        if UnitGUID("player") then
-          local playerGuid = UnitGUID("player")
-          if playerGuid == targetGuid and pfPlayer then
-            pfPlayer.update_aura = true
-          end
+        if IsPlayerGuid(targetGuid) and pfPlayer then
+          pfPlayer.update_aura = true
         end
         
         -- Check target
-        if UnitGUID("target") then
+        if UnitExists("target") then
           local tarUnitGUID = UnitGUID("target")
           if tarUnitGUID == targetGuid and pfTarget then
             pfTarget.update_aura = true
@@ -1520,7 +1501,7 @@ if hasNampower then
         end
       end
       
-      local myGuid = GetPlayerGUID()
+      local myGuid = GetPlayerGuid()
       local isOurs = (myGuid and casterGuid == myGuid)
       
       -- Fallback: Check ownDebuffs timing
@@ -1555,7 +1536,7 @@ if hasNampower then
       -- CRITICAL FIX: Update ownDebuffs here too for refresh timing!
       -- This prevents the gap between DEBUFF_REMOVED and AURA_CAST where buffwatch shows nothing
       if isOurs and casterGuid then
-        local myGuid = GetPlayerGUID()
+        local myGuid = GetPlayerGuid()
         if myGuid and casterGuid == myGuid then
           -- Check if we have timer data from allAuraCasts
           if allAuraCasts[guid] and allAuraCasts[guid][spellName] and allAuraCasts[guid][spellName][casterGuid] then
diff --git a/modules/innervatecall.lua b/modules/innervatecall.lua
index 4ae3ebd0..e9163ce7 100644
--- a/modules/innervatecall.lua
+++ b/modules/innervatecall.lua
@@ -13,15 +13,6 @@ pfUI:RegisterModule("innervatecall", function ()
 
   local INNERVATE_SPELLID = 29166
 
-  -- Cache player GUID
-  local playerGuid = nil
-  local function GetPlayerGuid()
-    if not playerGuid and UnitGUID then
-      playerGuid = UnitGUID("player")
-    end
-    return playerGuid
-  end
-
   -- GUID → name resolution for the target. UnitTokenFromGUID walks the
   -- engine's known unit tokens (player, party, raid, target, ...) and
   -- returns the first one currently bound to the GUID, so we don't have
@@ -75,7 +66,7 @@ pfUI:RegisterModule("innervatecall", function ()
     if spellId ~= INNERVATE_SPELLID then return end
 
     -- Only announce our own casts
-    if casterGuid ~= GetPlayerGuid() then return end
+    if not IsPlayerGuid(casterGuid) then return end
 
     -- Resolve target name from GUID
     local targetName = ResolveTargetName(targetGuid) or "Unknown"
diff --git a/modules/nameplates.lua b/modules/nameplates.lua
index 98f28aea..5b697702 100644
--- a/modules/nameplates.lua
+++ b/modules/nameplates.lua
@@ -100,12 +100,6 @@ pfUI:RegisterModule("nameplates", function ()
   -- PERF: visiblePlateCount maintained event-driven (NAME_PLATE_UNIT_ADDED/_REMOVED)
   local visiblePlateCount = 0
 
-  -- wipe polyfill
-  local wipe = wipe or function(t) for k in pairs(t) do t[k] = nil end end
-
-  -- Player GUID for filtering
-  local PlayerGUID = UnitGUID("player")
-
   -- ============================================================================
   -- OPTIMIZATION: Config caching
   -- ============================================================================
@@ -492,7 +486,6 @@ end
       
     elseif event == "PLAYER_ENTERING_WORLD" or event == "ZONE_CHANGED_NEW_AREA" then
       if event == "PLAYER_ENTERING_WORLD" then
-        _, PlayerGUID = UnitExists("player")
         CacheConfig()
         this:SetGameVariables()
         RebuildRaidGuidCache()
diff --git a/modules/swingtimer.lua b/modules/swingtimer.lua
index f27eb8e2..23c016dd 100644
--- a/modules/swingtimer.lua
+++ b/modules/swingtimer.lua
@@ -32,7 +32,6 @@ pfUI:RegisterModule("swingtimer", function ()
     isDruid = false,
     cachedHSSlots = {}, cachedCleaveSlots = {},
     useSpellQueueEvent = false,
-    playerGUID = nil,
     swingThrottle = 0,
     onSwingCache = {},
   }
@@ -832,8 +831,7 @@ pfUI:RegisterModule("swingtimer", function ()
     elseif event == "AUTO_ATTACK_OTHER" then
       -- Parry haste: enemy attacked the player and player parried
       local targetGuid = arg2
-      if not targetGuid or not S.playerGUID then return end
-      if targetGuid ~= S.playerGUID then return end
+      if not targetGuid or not IsPlayerGuid(targetGuid) then return end
       local victimState = arg5 or 0
       -- VICTIMSTATE_PARRY = 3
       -- Vanilla: parry reduces the NEXT swing timer by 40% of weapon speed,
@@ -880,7 +878,6 @@ pfUI:RegisterModule("swingtimer", function ()
       local _, class = UnitClass("player")
       S.isWarrior  = (class == "WARRIOR")
       S.isDruid    = (class == "DRUID")
-      S.playerGUID = UnitGUID("player")
       UpdateWeaponSpeeds()
       RebuildQueueSlotCache()
 
@@ -910,7 +907,7 @@ pfUI:RegisterModule("swingtimer", function ()
       S.maulQueued   = false
 
     elseif event == "UNIT_DIED" then
-      if arg1 and arg1 == S.playerGUID then
+      if IsPlayerGuid(arg1) then
         ResetAll()
       end
     end