fix range on self cast spells

NampowerAPI.lua

@@ -1544,10 +1544,20 @@ function API.IsSpellInRange(spellIdentifier, unit)
         local result = IsSpellInRange(checkValue, unit)
         -- result == 1 (in range), 0 (out of range), -1 (invalid/non-unit-targeted), nil (error)
         -- Only use native result for definitive answers (0 or 1)
-        -- Fall through to UnitXP fallback for -1 (ground-targeted spells like Blizzard)
         if result == 0 or result == 1 then
             return result
         end
+
+        -- For -1 (non-unit-targeted), check if it's a self-only spell
+        -- Self-targeted spells (rangeIndex 0) should always be considered in range
+        if result == -1 and spellId and spellId > 0 then
+            local rangeIndex = API.GetSpellField(spellId, "rangeIndex")
+            -- rangeIndex 0 = Self Only, 14 = Self Only (alternate), 23 = Touch
+            if rangeIndex == 0 or rangeIndex == 14 or rangeIndex == 23 then
+                return 1  -- Self-targeted spells are always in range
+            end
+            -- For other -1 cases (ground-targeted like Blizzard), fall through to UnitXP
+        end
     end
 
     -- Fallback: Use spell range from record + UnitXP distance check