--悪魔の嘆き
--Fiend Griefing
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TODECK+CATEGORY_DECKDES)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.filter(c)
	return c:IsMonster() and c:IsAbleToDeck()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(1-tp) and chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,0,LOCATION_GRAVE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.filter,tp,0,LOCATION_GRAVE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,1,0,0)
	Duel.SetPossibleOperationInfo(0,CATEGORY_TOGRAVE,nil,1,tp,LOCATION_DECK)
end
function s.tgfilter(c)
	return c:IsRace(RACE_FIEND) and c:IsAbleToGrave()
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.SendtoDeck(tc,nil,SEQ_DECKSHUFFLE,REASON_EFFECT)~=0 then
		local g=Duel.GetMatchingGroup(s.tgfilter,tp,LOCATION_DECK,0,nil)
		if #g>0 and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
			Duel.BreakEffect()
			Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
			local sg=g:Select(tp,1,1,nil)
			Duel.SendtoGrave(sg,REASON_EFFECT)
		end
	end
end