name: Mecha
card_text: If you control a face-up Sea Serpent-Type monster, you can Normal Summon this card without Tributing. Once per turn: You can Tribute 1 WATER monster to target 1 face-up card your opponent controls; destroy that target.
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--summon with no tribute
  	local e1 = Effect.CreateEffect(c)
  	e1:SetDescription(aux.Stringid(id, 0))
  	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
  	e1:SetType(EFFECT_TYPE_SINGLE)
  	e1:SetCode(EFFECT_SUMMON_PROC)
  	e1:SetCondition(s.ntcon)
  	c:RegisterEffect(e1)
  	--destroy
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 1))
  	e2:SetCategory(CATEGORY_DESTROY)
  	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
  	e2:SetType(EFFECT_TYPE_IGNITION)
  	e2:SetRange(LOCATION_MZONE)
  	e2:SetCountLimit(1)
  	e2:SetCost(s.cost)
  	e2:SetTarget(s.target)
  	e2:SetOperation(s.operation)
  	c:RegisterEffect(e2)
  end
  function s.ntfilter(c)
  	return c:IsFaceup() and c:IsRace(RACE_SEASERPENT)
  end
  function s.ntcon(e, c, minc)
  	if c == nil then
  		return true
  	end
  	return minc == 0 and c:IsLevelAbove(5) and Duel.GetLocationCount(c:GetControler(), LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.ntfilter, c:GetControler(), LOCATION_MZONE, 0, 1, nil)
  end
  function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.CheckReleaseGroup(tp, Card.IsAttribute, 1, nil, ATTRIBUTE_WATER)
  	end
  	local g = Duel.SelectReleaseGroup(tp, Card.IsAttribute, 1, 1, nil, ATTRIBUTE_WATER)
  	Duel.Release(g, REASON_COST)
  end
  function s.filter(c)
  	return c:IsFaceup()
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		return chkc:IsOnField() and chkc:IsControler(1 - tp) and s.filter(chkc)
  	end
  	if chk == 0 then
  		return Duel.IsExistingTarget(s.filter, tp, 0, LOCATION_ONFIELD, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_DESTROY)
  	local g = Duel.SelectTarget(tp, s.filter, tp, 0, LOCATION_ONFIELD, 1, 1, nil)
  	Duel.SetOperationInfo(0, CATEGORY_DESTROY, g, 1, 0, 0)
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsRelateToEffect(e) and tc:IsFaceup() then
  		Duel.Destroy(tc, REASON_EFFECT)
  	end
  end
  
  
source_text: Mecha
  If you control a face-up Sea Serpent-Type monster, you can Normal Summon this card without Tributing. Once per turn: You can Tribute 1 WATER monster to target 1 face-up card your opponent controls; destroy that target.
target_text: -- Mecha
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--summon with no tribute
  	local e1 = Effect.CreateEffect(c)
  	e1:SetDescription(aux.Stringid(id, 0))
  	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
  	e1:SetType(EFFECT_TYPE_SINGLE)
  	e1:SetCode(EFFECT_SUMMON_PROC)
  	e1:SetCondition(s.ntcon)
  	c:RegisterEffect(e1)
  	--destroy
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 1))
  	e2:SetCategory(CATEGORY_DESTROY)
  	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
  	e2:SetType(EFFECT_TYPE_IGNITION)
  	e2:SetRange(LOCATION_MZONE)
  	e2:SetCountLimit(1)
  	e2:SetCost(s.cost)
  	e2:SetTarget(s.target)
  	e2:SetOperation(s.operation)
  	c:RegisterEffect(e2)
  end
  function s.ntfilter(c)
  	return c:IsFaceup() and c:IsRace(RACE_SEASERPENT)
  end
  function s.ntcon(e, c, minc)
  	if c == nil then
  		return true
  	end
  	return minc == 0 and c:IsLevelAbove(5) and Duel.GetLocationCount(c:GetControler(), LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.ntfilter, c:GetControler(), LOCATION_MZONE, 0, 1, nil)
  end
  function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.CheckReleaseGroup(tp, Card.IsAttribute, 1, nil, ATTRIBUTE_WATER)
  	end
  	local g = Duel.SelectReleaseGroup(tp, Card.IsAttribute, 1, 1, nil, ATTRIBUTE_WATER)
  	Duel.Release(g, REASON_COST)
  end
  function s.filter(c)
  	return c:IsFaceup()
  end
  function s.target(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	if chkc then
  		return chkc:IsOnField() and chkc:IsControler(1 - tp) and s.filter(chkc)
  	end
  	if chk == 0 then
  		return Duel.IsExistingTarget(s.filter, tp, 0, LOCATION_ONFIELD, 1, nil)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_DESTROY)
  	local g = Duel.SelectTarget(tp, s.filter, tp, 0, LOCATION_ONFIELD, 1, 1, nil)
  	Duel.SetOperationInfo(0, CATEGORY_DESTROY, g, 1, 0, 0)
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsRelateToEffect(e) and tc:IsFaceup() then
  		Duel.Destroy(tc, REASON_EFFECT)
  	end
  end
  
  