--ハイドロゲドン
function c22587018.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(22587018,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetCode(EVENT_BATTLE_DESTROYING)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCondition(c22587018.spcon)
	e1:SetTarget(c22587018.sptg)
	e1:SetOperation(c22587018.spop)
	c:RegisterEffect(e1)
end
function c22587018.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local t=Duel.GetAttackTarget()
	if ev==1 then t=Duel.GetAttacker() end
	if not c:IsRelateToBattle() or c:IsFacedown() then return false end
	return t:GetLocation()==LOCATION_GRAVE and t:IsType(TYPE_MONSTER)
end
function c22587018.filter(c,e,tp)
	return c:IsCode(22587018) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function c22587018.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 
		and Duel.IsExistingMatchingCard(c22587018.filter,tp,LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function c22587018.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local tc=Duel.GetFirstMatchingCard(c22587018.filter,tp,LOCATION_DECK,0,nil,e,tp)
	if tc then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
