name: Nitwit
card_text: Discard 1 monster, then target 1 face-up monster on the field; it loses ATK equal to the discarded monster's original ATK.
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetCategory(CATEGORY_ATKCHANGE)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetHintTiming(TIMING_DAMAGE_STEP)
  	e1:SetCondition(aux.dscon)
  	e1:SetCost(s.cost)
  	e1:SetTarget(s.target)
  	e1:SetOperation(s.activate)
  	c:RegisterEffect(e1)
  end
  function s.cfilter(c)
  	return c:GetAttack() > 0 and c:IsDiscardable()
  end
  function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.IsExistingMatchingCard(s.cfilter, tp, LOCATION_HAND, 0, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_DISCARD)
  	local g = Duel.SelectMatchingCard(tp, s.cfilter, tp, LOCATION_HAND, 0, 1, 1, nil)
  	e:SetLabel(g:GetFirst():GetAttack())
  	Duel.SendtoGrave(g, REASON_COST + REASON_DISCARD)
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		return chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup()
  	end
  	if chk == 0 then
  		return Duel.IsExistingTarget(Card.IsFaceup, tp, LOCATION_MZONE, LOCATION_MZONE, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_FACEUP)
  	Duel.SelectTarget(tp, Card.IsFaceup, tp, LOCATION_MZONE, LOCATION_MZONE, 1, 1, nil)
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsFaceup() and tc:IsRelateToEffect(e) then
  		local e1 = Effect.CreateEffect(e:GetHandler())
  		e1:SetType(EFFECT_TYPE_SINGLE)
  		e1:SetCode(EFFECT_UPDATE_ATTACK)
  		e1:SetValue(-e:GetLabel())
  		e1:SetReset(RESET_EVENT + RESETS_STANDARD)
  		tc:RegisterEffect(e1)
  	end
  end
  
  
source_text: Nitwit
  Discard 1 monster, then target 1 face-up monster on the field; it loses ATK equal to the discarded monster's original ATK.
target_text: -- Nitwit
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetCategory(CATEGORY_ATKCHANGE)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetHintTiming(TIMING_DAMAGE_STEP)
  	e1:SetCondition(aux.dscon)
  	e1:SetCost(s.cost)
  	e1:SetTarget(s.target)
  	e1:SetOperation(s.activate)
  	c:RegisterEffect(e1)
  end
  function s.cfilter(c)
  	return c:GetAttack() > 0 and c:IsDiscardable()
  end
  function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.IsExistingMatchingCard(s.cfilter, tp, LOCATION_HAND, 0, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_DISCARD)
  	local g = Duel.SelectMatchingCard(tp, s.cfilter, tp, LOCATION_HAND, 0, 1, 1, nil)
  	e:SetLabel(g:GetFirst():GetAttack())
  	Duel.SendtoGrave(g, REASON_COST + REASON_DISCARD)
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		return chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup()
  	end
  	if chk == 0 then
  		return Duel.IsExistingTarget(Card.IsFaceup, tp, LOCATION_MZONE, LOCATION_MZONE, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_FACEUP)
  	Duel.SelectTarget(tp, Card.IsFaceup, tp, LOCATION_MZONE, LOCATION_MZONE, 1, 1, nil)
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsFaceup() and tc:IsRelateToEffect(e) then
  		local e1 = Effect.CreateEffect(e:GetHandler())
  		e1:SetType(EFFECT_TYPE_SINGLE)
  		e1:SetCode(EFFECT_UPDATE_ATTACK)
  		e1:SetValue(-e:GetLabel())
  		e1:SetReset(RESET_EVENT + RESETS_STANDARD)
  		tc:RegisterEffect(e1)
  	end
  end
  
  