This more of a question/suggestion

Hello,
 
Try it:

 for i=1, 4 do
	local partyId = "party"..i
	local name, realm = UnitName(partyId)
        local spellName = GetSpellInfo(53477)
	if (name) then
		TargetUnit(partyId);
		CastSpellByName(spellName, partyId)
	end
end

http://wowpedia.org/UnitId

http://wowpedia.org/API_UnitName

http://wowpedia.org/API_GetSpellInfo ( http://www.wowhead.com/spell=53477 )

http://wowpedia.org/API_CastSpellByName

http://wowpedia.org/API_TargetUnit

Ok so would it look like this???

    setfocus = ("Target", "Party member") if focus = ("Party Member") then settarget = ("Party Member", "Target")
if Partymembertarget = ("Target") then ("/cast Taunt") for i=1, 4 do
    local partyId = "party"..i
    local name, realm = UnitName("unit")
        local spellName = GetSpellInfo(53477)
    if (name) then
        TargetUnit(partyId);
        CastSpellByName(spellName, partyId)
    end
end

Your code is not good, does not exist in wow api. My code don't works?

local spellName = GetSpellInfo(53477)
for i=1, 4 do
	local partyId = "party"..i
	if (UnitExists(partyId)) then
		TargetUnit(partyId)
		CastSpellByName(spellName, partyId)
	end
end

You can add condition at this line: if (UnitExists(partyId)) then

By sample, if (UnitExists(partyId) and UnitHealth(partyId) < 500 and UnitInRange(partyId) and not UnitIsDead(partyId)) then ...

Yeah Im working on learning this stuff Im just failing at it lol..... Nice code and ty ill test it out, im lvling a priest. And this would work with a taunt or a AOE heal?

keep it up, you will get it :)