--炎帝近衛兵
---@param c Card
function c54040221.initial_effect(c)
	--to deck and draw
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(54040221,0))
	e1:SetCategory(CATEGORY_TODECK+CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_TRIGGER_F+EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(c54040221.tg)
	e1:SetOperation(c54040221.op)
	c:RegisterEffect(e1)
end
function c54040221.filter(c)
	return c:IsRace(RACE_PYRO) and c:IsAbleToDeck()
end
function c54040221.tg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and c54040221.filter(chkc) end
	if chk==0 then return true end
	if Duel.IsExistingTarget(c54040221.filter,tp,LOCATION_GRAVE,0,4,nil) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
		local g=Duel.SelectTarget(tp,c54040221.filter,tp,LOCATION_GRAVE,0,4,4,nil)
		Duel.SetOperationInfo(0,CATEGORY_TODECK,g,g:GetCount(),0,0)
		Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,2)
	end
end
function c54040221.op(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS)
	if not tg or tg:FilterCount(Card.IsRelateToEffect,nil,e)~=4 then return end
	Duel.SendtoDeck(tg,nil,SEQ_DECKSHUFFLE,REASON_EFFECT)
	local g=Duel.GetOperatedGroup()
	if g:IsExists(Card.IsLocation,1,nil,LOCATION_DECK) then Duel.ShuffleDeck(tp) end
	local ct=g:FilterCount(Card.IsLocation,nil,LOCATION_DECK+LOCATION_EXTRA)
	if ct==4 then
		Duel.BreakEffect()
		Duel.Draw(tp,2,REASON_EFFECT)
	end
end
