Vice
If only your opponent controls a monster, you can Special Summon this card (from your hand), but its original ATK/DEF become halved.
local s, id, o = GetID()
function s.initial_effect(c)
	--special summon
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.spcon)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
end
function s.spcon(e, c)
	if c == nil then
		return true
	end
	return Duel.GetFieldGroupCount(c:GetControler(), LOCATION_MZONE, 0) == 0
		and Duel.GetFieldGroupCount(c:GetControler(), 0, LOCATION_MZONE) > 0
		and Duel.GetLocationCount(c:GetControler(), LOCATION_MZONE) > 0
end
function s.spop(e, tp, eg, ep, ev, re, r, rp, c)
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_SET_BASE_ATTACK)
	e1:SetValue(1000)
	e1:SetReset(RESET_EVENT + 0xff0000)
	c:RegisterEffect(e1)
	local e2 = Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_SET_BASE_DEFENSE)
	e2:SetValue(1200)
	e2:SetReset(RESET_EVENT + 0xff0000)
	c:RegisterEffect(e2)
end


Vice
If only your opponent controls a monster, you can Special Summon this card (from your hand), but its original ATK/DEF become halved.
-- Vice
local s, id, o = GetID()
function s.initial_effect(c)
	--special summon
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.spcon)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
end
function s.spcon(e, c)
	if c == nil then
		return true
	end
	return Duel.GetFieldGroupCount(c:GetControler(), LOCATION_MZONE, 0) == 0
		and Duel.GetFieldGroupCount(c:GetControler(), 0, LOCATION_MZONE) > 0
		and Duel.GetLocationCount(c:GetControler(), LOCATION_MZONE) > 0
end
function s.spop(e, tp, eg, ep, ev, re, r, rp, c)
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_SET_BASE_ATTACK)
	e1:SetValue(1000)
	e1:SetReset(RESET_EVENT + 0xff0000)
	c:RegisterEffect(e1)
	local e2 = Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_SET_BASE_DEFENSE)
	e2:SetValue(1200)
	e2:SetReset(RESET_EVENT + 0xff0000)
	c:RegisterEffect(e2)
end

