name: Core
card_text: Equip only to a "Koa'ki Meiru" monster. If it battles a LIGHT or DARK monster, destroy that monster without applying damage calculation. When the equipped monster is removed from the field and this card is sent to the Graveyard, you can return this card to your hand.
external_ids: local SETCARD_ID_0 = 0x1d --Koa'ki
  
lua: local SETCARD_ID_0 = 0x1d --Koa'ki
  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:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_CONTINUOUS_TARGET)
  	e1:SetTarget(s.target)
  	e1:SetOperation(s.operation)
  	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)
  	c:RegisterEffect(e2)
  	--destroy
  	local e3 = Effect.CreateEffect(c)
  	e3:SetDescription(aux.Stringid(id, 0))
  	e3:SetCategory(CATEGORY_DESTROY)
  	e3:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_F)
  	e3:SetRange(LOCATION_SZONE)
  	e3:SetCode(EVENT_BATTLE_START)
  	e3:SetCondition(s.descon)
  	e3:SetTarget(s.destg)
  	e3:SetOperation(s.desop)
  	c:RegisterEffect(e3)
  	--salvage
  	local e4 = Effect.CreateEffect(c)
  	e4:SetDescription(aux.Stringid(id, 1))
  	e4:SetCategory(CATEGORY_TOHAND)
  	e4:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
  	e4:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
  	e4:SetCode(EVENT_TO_GRAVE)
  	e4:SetCondition(s.thcon)
  	e4:SetTarget(s.thtg)
  	e4:SetOperation(s.thop)
  	c:RegisterEffect(e4)
  end
  function s.eqlimit(e, c)
  	return c:IsSetCard(SETCARD_ID_0)
  end
  function s.filter(c)
  	return c:IsFaceup() and c:IsSetCard(SETCARD_ID_0)
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		return chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc)
  	end
  	if chk == 0 then
  		return Duel.IsExistingTarget(s.filter, tp, LOCATION_MZONE, LOCATION_MZONE, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_EQUIP)
  	Duel.SelectTarget(tp, s.filter, tp, LOCATION_MZONE, LOCATION_MZONE, 1, 1, nil)
  	Duel.SetOperationInfo(0, CATEGORY_EQUIP, e:GetHandler(), 1, 0, 0)
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	local tc = Duel.GetFirstTarget()
  	if c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) and tc:IsFaceup() then
  		Duel.Equip(tp, c, tc)
  	end
  end
  function s.descon(e, tp, eg, ep, ev, re, r, rp)
  	local ec = e:GetHandler():GetEquipTarget()
  	if ec ~= Duel.GetAttacker() and ec ~= Duel.GetAttackTarget() then
  		return false
  	end
  	local tc = ec:GetBattleTarget()
  	e:SetLabelObject(tc)
  	return tc and tc:IsFaceup() and tc:IsAttribute(ATTRIBUTE_LIGHT + ATTRIBUTE_DARK)
  end
  function s.destg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return true
  	end
  	Duel.SetOperationInfo(0, CATEGORY_DESTROY, e:GetLabelObject(), 1, 0, 0)
  end
  function s.desop(e, tp, eg, ep, ev, re, r, rp)
  	local tc = e:GetLabelObject()
  	if tc:IsFaceup() and tc:IsRelateToBattle() then
  		Duel.Destroy(tc, REASON_EFFECT)
  	end
  end
  function s.thcon(e, tp, eg, ep, ev, re, r, rp)
  	return e:GetHandler():IsReason(REASON_LOST_TARGET) and not e:GetHandler():GetPreviousEquipTarget():IsLocation(LOCATION_ONFIELD + LOCATION_OVERLAY)
  end
  function s.thtg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return e:GetHandler():IsAbleToHand()
  	end
  	Duel.SetOperationInfo(0, CATEGORY_TOHAND, e:GetHandler(), 1, 0, 0)
  end
  function s.thop(e, tp, eg, ep, ev, re, r, rp)
  	if e:GetHandler():IsRelateToEffect(e) then
  		Duel.SendtoHand(e:GetHandler(), nil, REASON_EFFECT)
  		Duel.ConfirmCards(1 - tp, e:GetHandler())
  	end
  end
  
  
source_text: Core
  Equip only to a "Koa'ki Meiru" monster. If it battles a LIGHT or DARK monster, destroy that monster without applying damage calculation. When the equipped monster is removed from the field and this card is sent to the Graveyard, you can return this card to your hand.
target_text: -- Core
  local SETCARD_ID_0 = 0x1d --Koa'ki
  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:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_CONTINUOUS_TARGET)
  	e1:SetTarget(s.target)
  	e1:SetOperation(s.operation)
  	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)
  	c:RegisterEffect(e2)
  	--destroy
  	local e3 = Effect.CreateEffect(c)
  	e3:SetDescription(aux.Stringid(id, 0))
  	e3:SetCategory(CATEGORY_DESTROY)
  	e3:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_F)
  	e3:SetRange(LOCATION_SZONE)
  	e3:SetCode(EVENT_BATTLE_START)
  	e3:SetCondition(s.descon)
  	e3:SetTarget(s.destg)
  	e3:SetOperation(s.desop)
  	c:RegisterEffect(e3)
  	--salvage
  	local e4 = Effect.CreateEffect(c)
  	e4:SetDescription(aux.Stringid(id, 1))
  	e4:SetCategory(CATEGORY_TOHAND)
  	e4:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
  	e4:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
  	e4:SetCode(EVENT_TO_GRAVE)
  	e4:SetCondition(s.thcon)
  	e4:SetTarget(s.thtg)
  	e4:SetOperation(s.thop)
  	c:RegisterEffect(e4)
  end
  function s.eqlimit(e, c)
  	return c:IsSetCard(SETCARD_ID_0)
  end
  function s.filter(c)
  	return c:IsFaceup() and c:IsSetCard(SETCARD_ID_0)
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		return chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc)
  	end
  	if chk == 0 then
  		return Duel.IsExistingTarget(s.filter, tp, LOCATION_MZONE, LOCATION_MZONE, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_EQUIP)
  	Duel.SelectTarget(tp, s.filter, tp, LOCATION_MZONE, LOCATION_MZONE, 1, 1, nil)
  	Duel.SetOperationInfo(0, CATEGORY_EQUIP, e:GetHandler(), 1, 0, 0)
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	local tc = Duel.GetFirstTarget()
  	if c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) and tc:IsFaceup() then
  		Duel.Equip(tp, c, tc)
  	end
  end
  function s.descon(e, tp, eg, ep, ev, re, r, rp)
  	local ec = e:GetHandler():GetEquipTarget()
  	if ec ~= Duel.GetAttacker() and ec ~= Duel.GetAttackTarget() then
  		return false
  	end
  	local tc = ec:GetBattleTarget()
  	e:SetLabelObject(tc)
  	return tc and tc:IsFaceup() and tc:IsAttribute(ATTRIBUTE_LIGHT + ATTRIBUTE_DARK)
  end
  function s.destg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return true
  	end
  	Duel.SetOperationInfo(0, CATEGORY_DESTROY, e:GetLabelObject(), 1, 0, 0)
  end
  function s.desop(e, tp, eg, ep, ev, re, r, rp)
  	local tc = e:GetLabelObject()
  	if tc:IsFaceup() and tc:IsRelateToBattle() then
  		Duel.Destroy(tc, REASON_EFFECT)
  	end
  end
  function s.thcon(e, tp, eg, ep, ev, re, r, rp)
  	return e:GetHandler():IsReason(REASON_LOST_TARGET) and not e:GetHandler():GetPreviousEquipTarget():IsLocation(LOCATION_ONFIELD + LOCATION_OVERLAY)
  end
  function s.thtg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return e:GetHandler():IsAbleToHand()
  	end
  	Duel.SetOperationInfo(0, CATEGORY_TOHAND, e:GetHandler(), 1, 0, 0)
  end
  function s.thop(e, tp, eg, ep, ev, re, r, rp)
  	if e:GetHandler():IsRelateToEffect(e) then
  		Duel.SendtoHand(e:GetHandler(), nil, REASON_EFFECT)
  		Duel.ConfirmCards(1 - tp, e:GetHandler())
  	end
  end
  
  