--Cobal, Excavator of the Dark World
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
	e1:SetRange(LOCATION_HAND)
	e1:SetCode(EVENT_DAMAGE)
	e1:SetCondition(s.con)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
	--add
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCost(s.addcost)
	e2:SetTarget(s.addtg)
	e2:SetOperation(s.addop)
	c:RegisterEffect(e2)
end
function s.con(e,tp,eg,ep,ev,re,r,rp)
	return (r&REASON_BATTLE)>0 and ep==tp
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_PHASE+PHASE_END)
	e1:SetCountLimit(1)
	e1:SetRange(LOCATION_HAND)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END)
	c:RegisterEffect(e1)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if e:GetHandler():IsRelateToEffect(e) then
		Duel.SpecialSummon(e:GetHandler(),0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.addcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsAbleToGraveAsCost() end
	Duel.SendtoGrave(e:GetHandler(),REASON_COST)
end
function s.filter(c)
	return c:IsSetCard(SET_DARK_WORLD) and c:IsAbleToHand()
end
function s.addtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:GetLocation()==LOCATION_GRAVE and chkc:GetControler()==tp and c98494543.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,#g,0,0)
end
function s.addop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,tc)
	end
end