--Spiral Drill's Final Battle
--Script by TaxingCorn117
local cid,id=GetID()
function cid.initial_effect(c)
	c:SetUniqueOnField(1,0,id)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--recover
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_RECOVER)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_F)
	e2:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCode(EVENT_BATTLE_DAMAGE)
	e2:SetCondition(cid.reccon)
	e2:SetTarget(cid.rectg)
	e2:SetOperation(cid.recop)
	c:RegisterEffect(e2)
	--avoid battle damage
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_AVOID_BATTLE_DAMAGE)
	e3:SetRange(LOCATION_SZONE)
	e3:SetTargetRange(LOCATION_MZONE,0)
	e3:SetTarget(cid.target)
	e3:SetValue(1)
	c:RegisterEffect(e3)
	--to hand
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e4:SetType(EFFECT_TYPE_QUICK_O)
	e4:SetCode(EVENT_FREE_CHAIN)
	e4:SetRange(LOCATION_GRAVE)
	e4:SetCondition(cid.thcon)
	e4:SetCountLimit(1,id)
	e4:SetCost(aux.bfgcost)
	e4:SetTarget(cid.thtg)
	e4:SetOperation(cid.thop)
	c:RegisterEffect(e4)
end
--filters
function cid.thfilter(c)
	return c:IsSetCard(0x205) and c:IsType(TYPE_SPELL+TYPE_TRAP) and not c:IsCode(id) and c:IsAbleToHand()
end
--recover
function cid.reccon(e,tp,eg,ep,ev,re,r,rp)
	return ep~=tp and eg:GetFirst():IsControler(tp) and eg:GetFirst():IsSetCard(0x205)
end
function cid.rectg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(ev)
	Duel.SetOperationInfo(0,CATEGORY_RECOVER,nil,0,tp,ev)
end
function cid.recop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.Recover(p,d,REASON_EFFECT)
end
--avoid battle damage
function cid.target(e,c)
	return c:IsSetCard(0x205)
end
--search
function cid.thcon(e,tp,eg,ep,ev,re,r,rp)
	return aux.exccon(e) and Duel.GetTurnPlayer()==tp and (Duel.GetCurrentPhase()==PHASE_MAIN1 or Duel.GetCurrentPhase()==PHASE_MAIN2)
end
function cid.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(cid.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function cid.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,cid.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if g:GetCount()>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end