Is it possible to detect if there is a marker on the target? (like skull or cross)

 

With the bugfixed "Hostile near" (*happy*) it will be nessasary to concentrate (no AOE) the fire, if the boss is marked and has adds.

Hello,

 

You have lua functions GetRaidTargetIndex and SetRaidTarget (or SetRaidTargetIcon)

 

Samples:

 

Launch the spell id 109259 on the first boss with skull icon:

local SpellName = GetSpellInfo(109259)
for i = 1, 4, 1 do
	local UnitIdString = "boss" .. i
    if UnitExists(UnitIdString) then
		if GetRaidTargetIndex(UnitIdString) == 8 then
			CastSpellByName(SpellName, UnitIdString)
			return
		end
	end
end

Launch the spell id 109259 on the first raid target with skull icon (this code check the target of raid members):

local SpellName = GetSpellInfo(109259)
for i = 1, 40, 1 do
	local UnitIdString = "raid" .. i .. "target"
    if UnitExists(UnitIdString) then
		if GetRaidTargetIndex(UnitIdString) == 8 then
			CastSpellByName(SpellName, UnitIdString)
			return
		end
	end
end

Launch the spell id 109259 on the first party target with skull icon (this code check the target of party members):

local SpellName = GetSpellInfo(109259)
for i = 1, 4, 1 do
	local UnitIdString = "party" .. i .. "target"
    if UnitExists(UnitIdString) then
		if GetRaidTargetIndex(UnitIdString) == 8 then
			CastSpellByName(SpellName, UnitIdString)
			return
		end
	end
end

ps: Replace 109259 by your spell id and add conditions to launch the spell, to launch the spell if mob health is lower than 50%:

local SpellName = GetSpellInfo(109259)
for i = 1, 4, 1 do
	local UnitIdString = "party" .. i .. "target"
    if UnitExists(UnitIdString) then
		if GetRaidTargetIndex(UnitIdString) == 8 then
			if UnitHealth(UnitIdString)/UnitHealthMax(UnitIdString)*100 < 50 then
				CastSpellByName(SpellName, UnitIdString)
				return
			end
		end
	end
end

ps2: Code no tested, do not hesitate to tell me if this don't works

Can someone help me.

I Have a Mage in Vanilla Wow that I would love to sheep my skull until i tell him to stop it

Added in Partychat Lua 

local SpellName = GetSpellInfo(12824)
for i = 1, 4, 1 do
 local UnitIdString = "party" .. i .. "target"
    if UnitExists(UnitIdString) then
  if GetRaidTargetIndex(UnitIdString) == 8 then
   CastSpellByName(SpellName, UnitIdString)
   return
  end
 end
end

But comes with and error in game when I ask it to sheep the target