--ライトロード・セイント ミネルバ
--Minerva, the Exalted Lightsworn
local s,id=GetID()
function s.initial_effect(c)
	--xyz summon
	Xyz.AddProcedure(c,nil,4,2)
	c:EnableReviveLimit()
	--discard deck & draw
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DECKDES+CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,id)
	e1:SetCost(Cost.DetachFromSelf(1))
	e1:SetTarget(s.distg)
	e1:SetOperation(s.drop)
	c:RegisterEffect(e1)
	--discard deck & destroy
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_DECKDES+CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_DESTROYED)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.descon)
	e2:SetTarget(s.distg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_LIGHTSWORN}
function s.distg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeck(tp,3) end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(3)
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,tp,3)
end
function s.cfilter(c)
	return c:IsSetCard(SET_LIGHTSWORN) and c:IsLocation(LOCATION_GRAVE)
end
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.DiscardDeck(p,d,REASON_EFFECT)
	local g=Duel.GetOperatedGroup()
	local ct=g:FilterCount(s.cfilter,nil)
	if ct>0 then
		Duel.BreakEffect()
		Duel.Draw(tp,ct,REASON_EFFECT)
	end
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsReason(REASON_BATTLE) or (rp~=tp and c:IsReason(REASON_EFFECT) and c:IsPreviousControler(tp))
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.DiscardDeck(p,d,REASON_EFFECT)
	local g=Duel.GetOperatedGroup()
	local ct=g:FilterCount(s.cfilter,nil)
	local dg=Duel.GetMatchingGroup(aux.TRUE,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,nil)
	if ct~=0 and #dg>0 and Duel.SelectYesNo(tp,aux.Stringid(id,0)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
		local sdg=dg:Select(tp,1,ct,nil)
		Duel.HintSelection(sdg)
		Duel.Destroy(sdg,REASON_EFFECT)
	end
end
