Battle
When an opponent's monster declares an attack: Your opponent can reveal 1 monster in their hand to negate this card's effect, otherwise destroy the attacking monster, then end the Battle Phase.
local s, id, o = GetID()
function s.initial_effect(c)
	--Activate
	local e1 = Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e, tp, eg, ep, ev, re, r, rp)
	return tp ~= Duel.GetTurnPlayer()
end
function s.target(e, tp, eg, ep, ev, re, r, rp, chk)
	local tg = Duel.GetAttacker()
	if chk == 0 then
		return tg:IsOnField()
	end
	Duel.SetTargetCard(tg)
	if Duel.GetFieldGroupCount(tp, 0, LOCATION_HAND) == 0 then
		Duel.SetOperationInfo(0, CATEGORY_DESTROY, tg, 1, 0, 0)
	end
end
function s.cfilter(c)
	return not c:IsPublic() and c:IsType(TYPE_MONSTER)
end
function s.activate(e, tp, eg, ep, ev, re, r, rp)
	if Duel.IsChainDisablable(0) then
		local sel = 1
		local g = Duel.GetMatchingGroup(s.cfilter, 1 - tp, LOCATION_HAND, 0, nil)
		Duel.Hint(HINT_SELECTMSG, 1 - tp, aux.Stringid(id, 0))
		if g:GetCount() > 0 then
			sel = Duel.SelectOption(1 - tp, 1213, 1214)
		else
			sel = Duel.SelectOption(1 - tp, 1214) + 1
		end
		if sel == 0 then
			Duel.Hint(HINT_SELECTMSG, 1 - tp, HINTMSG_CONFIRM)
			local cg = g:Select(1 - tp, 1, 1, nil)
			Duel.ConfirmCards(tp, cg)
			Duel.ShuffleHand(1 - tp)
			Duel.NegateEffect(0)
			return
		end
	end
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsAttackable() and not tc:IsStatus(STATUS_ATTACK_CANCELED) and Duel.Destroy(tc, REASON_EFFECT) > 0 then
		Duel.SkipPhase(1 - tp, PHASE_BATTLE, RESET_PHASE + PHASE_BATTLE_STEP, 1)
	end
end


Battle
When an opponent's monster declares an attack: Your opponent can reveal 1 monster in their hand to negate this card's effect, otherwise destroy the attacking monster, then end the Battle Phase.
-- Battle
local s, id, o = GetID()
function s.initial_effect(c)
	--Activate
	local e1 = Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e, tp, eg, ep, ev, re, r, rp)
	return tp ~= Duel.GetTurnPlayer()
end
function s.target(e, tp, eg, ep, ev, re, r, rp, chk)
	local tg = Duel.GetAttacker()
	if chk == 0 then
		return tg:IsOnField()
	end
	Duel.SetTargetCard(tg)
	if Duel.GetFieldGroupCount(tp, 0, LOCATION_HAND) == 0 then
		Duel.SetOperationInfo(0, CATEGORY_DESTROY, tg, 1, 0, 0)
	end
end
function s.cfilter(c)
	return not c:IsPublic() and c:IsType(TYPE_MONSTER)
end
function s.activate(e, tp, eg, ep, ev, re, r, rp)
	if Duel.IsChainDisablable(0) then
		local sel = 1
		local g = Duel.GetMatchingGroup(s.cfilter, 1 - tp, LOCATION_HAND, 0, nil)
		Duel.Hint(HINT_SELECTMSG, 1 - tp, aux.Stringid(id, 0))
		if g:GetCount() > 0 then
			sel = Duel.SelectOption(1 - tp, 1213, 1214)
		else
			sel = Duel.SelectOption(1 - tp, 1214) + 1
		end
		if sel == 0 then
			Duel.Hint(HINT_SELECTMSG, 1 - tp, HINTMSG_CONFIRM)
			local cg = g:Select(1 - tp, 1, 1, nil)
			Duel.ConfirmCards(tp, cg)
			Duel.ShuffleHand(1 - tp)
			Duel.NegateEffect(0)
			return
		end
	end
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsAttackable() and not tc:IsStatus(STATUS_ATTACK_CANCELED) and Duel.Destroy(tc, REASON_EFFECT) > 0 then
		Duel.SkipPhase(1 - tp, PHASE_BATTLE, RESET_PHASE + PHASE_BATTLE_STEP, 1)
	end
end

