name: Kunai
card_text: Activate 1 or both of these effects (simultaneously);
  ● When an opponent's monster declares an attack: Target the attacking monster; change that target to Defense Position.
  ● Target 1 face-up monster you control; equip this card to that target. It gains 500 ATK.
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetCategory(CATEGORY_EQUIP)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetHintTiming(TIMING_DAMAGE_STEP)
  	e1:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP)
  	e1:SetCondition(aux.dscon)
  	e1:SetTarget(s.target)
  	e1:SetOperation(s.operation)
  	c:RegisterEffect(e1)
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		if e:GetLabel() == 0 then
  			return false
  		elseif e:GetLabel() == 1 then
  			return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup()
  		else
  			return false
  		end
  	end
  	local b1 = Duel.CheckEvent(EVENT_ATTACK_ANNOUNCE)
  		and Duel.GetTurnPlayer() ~= tp
  		and Duel.GetAttacker():IsLocation(LOCATION_MZONE)
  		and Duel.GetAttacker():IsAttackPos()
  		and Duel.GetAttacker():IsCanChangePosition()
  		and Duel.GetAttacker():IsCanBeEffectTarget(e)
  	local b2 = e:IsCostChecked() and Duel.IsExistingTarget(Card.IsFaceup, tp, LOCATION_MZONE, 0, 1, nil)
  	if chk == 0 then
  		return b1 or b2
  	end
  	local opt = 0
  	if b1 and b2 then
  		opt = Duel.SelectOption(tp, aux.Stringid(id, 0), aux.Stringid(id, 1), aux.Stringid(id, 2))
  	elseif b1 then
  		opt = Duel.SelectOption(tp, aux.Stringid(id, 0))
  	else
  		opt = Duel.SelectOption(tp, aux.Stringid(id, 1)) + 1
  	end
  	if opt == 0 or opt == 2 then
  		Duel.SetTargetCard(Duel.GetAttacker())
  	end
  	if opt == 1 or opt == 2 then
  		if e:IsCostChecked() then
  			local c = e:GetHandler()
  			local cid = Duel.GetChainInfo(0, CHAININFO_CHAIN_ID)
  			local e1 = Effect.CreateEffect(c)
  			e1:SetType(EFFECT_TYPE_SINGLE)
  			e1:SetCode(EFFECT_REMAIN_FIELD)
  			e1:SetProperty(EFFECT_FLAG_OATH)
  			e1:SetReset(RESET_CHAIN)
  			c:RegisterEffect(e1)
  			local e2 = Effect.CreateEffect(c)
  			e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_CONTINUOUS)
  			e2:SetCode(EVENT_CHAIN_DISABLED)
  			e2:SetOperation(s.tgop)
  			e2:SetLabel(cid)
  			e2:SetReset(RESET_CHAIN)
  			Duel.RegisterEffect(e2, tp)
  		end
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_EQUIP)
  		local g = Duel.SelectTarget(tp, Card.IsFaceup, tp, LOCATION_MZONE, 0, 1, 1, nil)
  		e:SetLabelObject(g:GetFirst())
  		Duel.SetOperationInfo(0, CATEGORY_EQUIP, e:GetHandler(), 1, 0, 0)
  	end
  	e:SetLabel(opt)
  end
  function s.tgop(e, tp, eg, ep, ev, re, r, rp)
  	local cid = Duel.GetChainInfo(ev, CHAININFO_CHAIN_ID)
  	if cid ~= e:GetLabel() then
  		return
  	end
  	if e:GetOwner():IsRelateToChain(ev) then
  		e:GetOwner():CancelToGrave(false)
  	end
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	local opt = e:GetLabel()
  	if opt == 0 or opt == 2 then
  		local tc = Duel.GetAttacker()
  		if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsAttackable() and not tc:IsStatus(STATUS_ATTACK_CANCELED) then
  			Duel.ChangePosition(tc, POS_FACEUP_DEFENSE)
  		end
  	end
  	if opt == 1 or opt == 2 then
  		if not c:IsLocation(LOCATION_SZONE) then
  			return
  		end
  		if not c:IsRelateToEffect(e) or c:IsStatus(STATUS_LEAVE_CONFIRMED) then
  			return
  		end
  		local tc = e:GetLabelObject()
  		if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsControler(tp) then
  			Duel.Equip(tp, c, tc)
  			--Atkup
  			local e1 = Effect.CreateEffect(c)
  			e1:SetType(EFFECT_TYPE_EQUIP)
  			e1:SetCode(EFFECT_UPDATE_ATTACK)
  			e1:SetValue(500)
  			e1:SetReset(RESET_EVENT + RESETS_STANDARD)
  			c:RegisterEffect(e1)
  			--Equip limit
  			local e2 = Effect.CreateEffect(c)
  			e2:SetType(EFFECT_TYPE_SINGLE)
  			e2:SetCode(EFFECT_EQUIP_LIMIT)
  			e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
  			e2:SetValue(s.eqlimit)
  			e2:SetReset(RESET_EVENT + RESETS_STANDARD)
  			c:RegisterEffect(e2)
  		else
  			c:CancelToGrave(false)
  		end
  	end
  end
  function s.eqlimit(e, c)
  	return e:GetHandler():GetEquipTarget() == c or c:IsControler(e:GetHandlerPlayer())
  end
  
  
source_text: Kunai
  Activate 1 or both of these effects (simultaneously);
  ● When an opponent's monster declares an attack: Target the attacking monster; change that target to Defense Position.
  ● Target 1 face-up monster you control; equip this card to that target. It gains 500 ATK.
target_text: -- Kunai
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetCategory(CATEGORY_EQUIP)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetHintTiming(TIMING_DAMAGE_STEP)
  	e1:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP)
  	e1:SetCondition(aux.dscon)
  	e1:SetTarget(s.target)
  	e1:SetOperation(s.operation)
  	c:RegisterEffect(e1)
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		if e:GetLabel() == 0 then
  			return false
  		elseif e:GetLabel() == 1 then
  			return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup()
  		else
  			return false
  		end
  	end
  	local b1 = Duel.CheckEvent(EVENT_ATTACK_ANNOUNCE)
  		and Duel.GetTurnPlayer() ~= tp
  		and Duel.GetAttacker():IsLocation(LOCATION_MZONE)
  		and Duel.GetAttacker():IsAttackPos()
  		and Duel.GetAttacker():IsCanChangePosition()
  		and Duel.GetAttacker():IsCanBeEffectTarget(e)
  	local b2 = e:IsCostChecked() and Duel.IsExistingTarget(Card.IsFaceup, tp, LOCATION_MZONE, 0, 1, nil)
  	if chk == 0 then
  		return b1 or b2
  	end
  	local opt = 0
  	if b1 and b2 then
  		opt = Duel.SelectOption(tp, aux.Stringid(id, 0), aux.Stringid(id, 1), aux.Stringid(id, 2))
  	elseif b1 then
  		opt = Duel.SelectOption(tp, aux.Stringid(id, 0))
  	else
  		opt = Duel.SelectOption(tp, aux.Stringid(id, 1)) + 1
  	end
  	if opt == 0 or opt == 2 then
  		Duel.SetTargetCard(Duel.GetAttacker())
  	end
  	if opt == 1 or opt == 2 then
  		if e:IsCostChecked() then
  			local c = e:GetHandler()
  			local cid = Duel.GetChainInfo(0, CHAININFO_CHAIN_ID)
  			local e1 = Effect.CreateEffect(c)
  			e1:SetType(EFFECT_TYPE_SINGLE)
  			e1:SetCode(EFFECT_REMAIN_FIELD)
  			e1:SetProperty(EFFECT_FLAG_OATH)
  			e1:SetReset(RESET_CHAIN)
  			c:RegisterEffect(e1)
  			local e2 = Effect.CreateEffect(c)
  			e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_CONTINUOUS)
  			e2:SetCode(EVENT_CHAIN_DISABLED)
  			e2:SetOperation(s.tgop)
  			e2:SetLabel(cid)
  			e2:SetReset(RESET_CHAIN)
  			Duel.RegisterEffect(e2, tp)
  		end
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_EQUIP)
  		local g = Duel.SelectTarget(tp, Card.IsFaceup, tp, LOCATION_MZONE, 0, 1, 1, nil)
  		e:SetLabelObject(g:GetFirst())
  		Duel.SetOperationInfo(0, CATEGORY_EQUIP, e:GetHandler(), 1, 0, 0)
  	end
  	e:SetLabel(opt)
  end
  function s.tgop(e, tp, eg, ep, ev, re, r, rp)
  	local cid = Duel.GetChainInfo(ev, CHAININFO_CHAIN_ID)
  	if cid ~= e:GetLabel() then
  		return
  	end
  	if e:GetOwner():IsRelateToChain(ev) then
  		e:GetOwner():CancelToGrave(false)
  	end
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	local opt = e:GetLabel()
  	if opt == 0 or opt == 2 then
  		local tc = Duel.GetAttacker()
  		if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsAttackable() and not tc:IsStatus(STATUS_ATTACK_CANCELED) then
  			Duel.ChangePosition(tc, POS_FACEUP_DEFENSE)
  		end
  	end
  	if opt == 1 or opt == 2 then
  		if not c:IsLocation(LOCATION_SZONE) then
  			return
  		end
  		if not c:IsRelateToEffect(e) or c:IsStatus(STATUS_LEAVE_CONFIRMED) then
  			return
  		end
  		local tc = e:GetLabelObject()
  		if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsControler(tp) then
  			Duel.Equip(tp, c, tc)
  			--Atkup
  			local e1 = Effect.CreateEffect(c)
  			e1:SetType(EFFECT_TYPE_EQUIP)
  			e1:SetCode(EFFECT_UPDATE_ATTACK)
  			e1:SetValue(500)
  			e1:SetReset(RESET_EVENT + RESETS_STANDARD)
  			c:RegisterEffect(e1)
  			--Equip limit
  			local e2 = Effect.CreateEffect(c)
  			e2:SetType(EFFECT_TYPE_SINGLE)
  			e2:SetCode(EFFECT_EQUIP_LIMIT)
  			e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
  			e2:SetValue(s.eqlimit)
  			e2:SetReset(RESET_EVENT + RESETS_STANDARD)
  			c:RegisterEffect(e2)
  		else
  			c:CancelToGrave(false)
  		end
  	end
  end
  function s.eqlimit(e, c)
  	return e:GetHandler():GetEquipTarget() == c or c:IsControler(e:GetHandlerPlayer())
  end
  
  