--ホワイト·ホーンズ·ドラゴン
function c73891874.initial_effect(c)
	--atk
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(73891874,0))
	e1:SetCategory(CATEGORY_ATKCHANGE+CATEGORY_REMOVE)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(c73891874.target)
	e1:SetOperation(c73891874.operation)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
end
function c73891874.filter(c)
	return c:IsType(TYPE_SPELL) and c:IsAbleToRemove()
end
function c73891874.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) and c73891874.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(c73891874.filter,tp,0,LOCATION_GRAVE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectTarget(tp,c73891874.filter,tp,0,LOCATION_GRAVE,1,5,nil)
	Duel.SetOperationInfo(0,CATEGORY_REMOVE,g,g:GetCount(),0,0)
end
function c73891874.operation(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS):Filter(Card.IsRelateToEffect,nil,e)
	local ct=Duel.Remove(g,POS_FACEUP,REASON_EFFECT)
	local c=e:GetHandler()
	if ct>0 and c:IsFaceup() and c:IsRelateToEffect(e) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT+0x1ff0000)
		e1:SetValue(ct*300)
		c:RegisterEffect(e1)
	end
end
