--created by Zarc, coded by Lyris
--Elflair - Defensive Song
local s,id,o=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:HOPT(true)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_CANNOT_BE_EFFECT_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetTarget(aux.TargetBoolFunction(Card.IsSetCard,0x355))
	e2:SetValue(s.tgval)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	e3:SetRange(LOCATION_SZONE)
	e3:HOPT()
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCategory(CATEGORY_DISABLE)
	e3:SetCondition(s.decon)
	e3:SetTarget(s.detg)
	e3:SetOperation(s.deop)
	c:RegisterEffect(e3)
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e4:SetCode(EVENT_ATTACK_ANNOUNCE)
	e4:SetRange(LOCATION_SZONE)
	e4:HOPT()
	e4:SetCondition(s.dbcon)
	e4:SetCost(s.dbcost)
	e4:SetOperation(Duel.NegateAttack)
	c:RegisterEffect(e4)
end
function s.tgval(e,re)
	return re:IsActiveType(TYPE_MONSTER) and re:GetHandler():IsSummonType(SUMMON_TYPE_SPECIAL)
end
function s.filter(c,tp)
	return c:IsSummonPlayer(tp) and c:IsSummonType(SUMMON_TYPE_LINK) and c:IsSetCard(0x355)
end
function s.decon(e,tp,eg)
	return eg:FilterCount(s.filter,nil,tp)==1
end
function s.detg(e,tp,_,_,_,_,_,_,chk)
	if chk==0 then return true end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CODE)
	Duel.SetTargetParam(Duel.AnnounceCard(tp))
	Duel.SetOperationInfo(0,CATEGORY_ANNOUNCE,nil,0,tp,0)
end
function s.deop(e,tp)
	local c=e:GetHandler()
	local ac=Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_DISABLE)
	e1:SetTargetRange(LOCATION_ONFIELD,LOCATION_ONFIELD)
	e1:SetTarget(s.distg1)
	e1:SetLabel(ac)
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
	local e3=e1:Clone()
	e3:SetCode(EFFECT_DISABLE_TRAPMONSTER)
	e3:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e3:SetTarget(aux.TargetBoolFunction(Card.IsOriginalCodeRule,ac))
	Duel.RegisterEffect(e3,tp)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e2:SetCode(EVENT_CHAIN_SOLVING)
	e2:SetCondition(s.discon)
	e2:SetOperation(s.disop)
	e2:SetLabel(ac)
	e2:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e2,tp)
end
function s.distg1(e,c)
	local ac=e:GetLabel()
	if c:IsType(TYPE_SPELL+TYPE_TRAP) then
		return c:IsOriginalCodeRule(ac)
	else
		return c:IsOriginalCodeRule(ac) and (c:IsType(TYPE_EFFECT) or c:GetOriginalType()&TYPE_EFFECT~=0)
	end
end
function s.discon(e,tp,eg,ep,ev,re,r,rp)
	return re:GetHandler():IsOriginalCodeRule(e:GetLabel())
end
function s.disop(e,tp,eg,ep,ev,re,r,rp)
	Duel.NegateEffect(ev)
end
function s.dbcon(e,tp)
	local tc=Duel.GetBattleMonster(tp)
	return tc and tc:IsFaceup() and tc:IsSetCard(0x355)
end
function s.cfilter(c)
	return c:IsDiscardable() and c:IsAbleToGraveAsCost()
end
function s.dbcost(e,tp,_,_,_,_,_,_,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_HAND,0,1,nil) end
	Duel.DiscardHand(tp,s.cfilter,1,1,REASON_COST+REASON_DISCARD)
end