--Dark Magician Girl the Dragon Knight
local s,id=GetID()
function s.initial_effect(c)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMix(c,true,true,1784686,CARD_DARK_MAGICIAN_GIRL)
	--Destroy
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_BATTLE_START)
	e1:SetCost(s.descost)
	e1:SetTarget(s.destg)
	e1:SetOperation(s.desop)
	c:RegisterEffect(e1)
end
s.material_setcode={0x10a2,0x20a2}
function s.descost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsAbleToGraveAsCost,tp,LOCATION_HAND,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,Card.IsAbleToGraveAsCost,tp,LOCATION_HAND,0,1,1,nil)
	Duel.SendtoGrave(g,REASON_COST)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	local tc=Duel.GetAttacker()
	if tc==c then tc=Duel.GetAttackTarget() end
	if chk==0 then return tc end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,tc,1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetAttacker()
	if not tc then return end
	if tc==c then tc=Duel.GetAttackTarget() end
	if tc:IsRelateToBattle() then Duel.Destroy(tc,REASON_EFFECT) end
end