--created by Ace, coded by Lyris
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	e1:SetValue(0)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_HAND)
	e2:SetCountLimit(1,id)
	e2:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND)
	e2:SetCost(s.cost)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_LEAVE_FIELD)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCountLimit(1,id)
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetCondition(s.con)
	e3:SetTarget(s.tg)
	e3:SetOperation(s.op)
	c:RegisterEffect(e3)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsDiscardable() end
	Duel.SendtoGrave(c,REASON_COST+REASON_DISCARD)
end
function s.filter(c)
	return c:IsCode(21208154) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK+LOCATION_GRAVE,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK+LOCATION_GRAVE)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local tc=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.filter),tp,LOCATION_DECK+LOCATION_GRAVE,0,1,1,nil):GetFirst()
	if Duel.SendtoHand(tc,nil,REASON_EFFECT)==0 or not tc:IsLocation(LOCATION_HAND) then return end
	Duel.ConfirmCards(1-tp,tc)
	local c=e:GetHandler()
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_LIMIT_SUMMON_PROC)
	e1:SetCondition(s.ttcon)
	e1:SetOperation(s.ttop)
	e1:SetValue(SUMMON_TYPE_ADVANCE)
	e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END-RESET_TOFIELD)
	tc:RegisterEffect(e1,true)
end
function s.ttcon(e,c,minc)
	if c==nil then return true end
	return minc<=2 and Duel.CheckTribute(c,2)
end
function s.ttop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=Duel.SelectTribute(tp,c,2,2)
	c:SetMaterial(g)
	Duel.Release(g,REASON_SUMMON+REASON_MATERIAL)
end
function s.con(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(function(c) return c:IsCode(21208154) and c:IsPreviousPosition(POS_FACEUP) and c:IsPreviousControler(tp) end,1,nil)
		and rp==1-tp
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,true,true) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) or Duel.SpecialSummon(c,0,tp,tp,true,false,POS_FACEUP)==0 then return end
	c:CompleteProcedure()
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(0,1)
	e1:SetValue(aux.TargetBoolFunction(Effect.IsActiveType,TYPE_MONSTER))
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
end