--created & coded by Lyris, art at https://previews.123rf.com/images/ipekmorel/ipekmorel1607/ipekmorel160700112/61071912-ruhigen-meeresoberfl%C3%A4che-mit-wellen.jpg
--アーマリン海－メガラニカ
local s,id,o=GetID()
function s.initial_effect(c)
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_ACTIVATE)
	e0:SetCode(EVENT_FREE_CHAIN)
	e0:SetCategory(CATEGORY_DESTROY)
	e0:SetTarget(s.target)
	e0:SetOperation(s.activate)
	c:RegisterEffect(e0)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_FZONE)
	e1:SetCountLimit(1)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetTarget(s.tg)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_CANNOT_ACTIVATE)
	e3:SetRange(LOCATION_FZONE)
	e3:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e3:SetTargetRange(0,1)
	e3:SetValue(1)
	e3:SetCondition(s.actcon)
	c:RegisterEffect(e3)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetFieldGroup(tp,LOCATION_ONFIELD,LOCATION_ONFIELD)-e:GetHandler()
	if chk==0 then return #g>0 end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.GetFieldGroup(tp,LOCATION_ONFIELD,LOCATION_ONFIELD):Select(tp,1,1,c)
	Duel.HintSelection(g)
	Duel.Destroy(g,REASON_EFFECT)
end
function s.cfilter(c)
	return c:IsType(TYPE_MONSTER) and c:IsSetCard(0xa6c)
end
function s.filter(c)
	return c:IsFaceup() and c:IsSetCard(0xa6c) and c:IsLevelAbove(1)
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil)
		and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_HAND,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,nil,1,tp,LOCATION_HAND)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	local tc=Duel.GetFirstTarget()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local lc=Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_HAND,0,1,1,nil):GetFirst()
	if not lc or Duel.Destroy(lc,REASON_EFFECT)==0 or not tc:IsRelateToEffect(e) or tc:IsControler(1-tp)
		or not tc:IsLocation(LOCATION_MZONE) or not s.filter(tc) then return end
	local op
	local lv=lc:GetLevel()
	if tc:IsLevelBelow(lv) then
		op=Duel.SelectOption(tp,aux.Stringid(id,0))
	else
		op=Duel.SelectOption(tp,aux.Stringid(id,0),aux.Stringid(id,1))
	end
	if op==1 then
		lv=-lv
	end
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_LEVEL)
	e1:SetValue(lv)
	e1:SetReset(RESET_EVENT+RESETS_STANDARD)
	tc:RegisterEffect(e1)
end
function s.actfilter(c,tp)
	return c and c:IsFaceup() and c:IsSetCard(0xa6c) and c:IsType(TYPE_MONSTER) and c:IsControler(tp)
end
function s.actcon(e)
	local tp=e:GetHandlerPlayer()
	return s.actfilter(Duel.GetAttacker(),tp) or s.actfilter(Duel.GetAttackTarget(),tp)
end