--Leviathan's Call
--Script by APurpleApple
local s = c56132086
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TOGRAVE)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,56132086)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.action)
	c:RegisterEffect(e1)
end

function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk == 0 then return true end
	Duel.Remove(Duel.GetDecktopGroup(tp,3), POS_FACEDOWN, REASON_COST)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local c = e:GetHandler()
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_DECK, 0,1, nil) end
	Duel.SetOperationInfo(0, CATEGORY_TOGRAVE, nil, 1, tp, LOCATION_DECK)
end
function s.action(e,tp,eg,ep,ev,re,r,rp)
	local c = e:GetHandler()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g = Duel.SelectMatchingCard(tp, s.filter,tp,LOCATION_DECK,0,1,1,nil)
	Duel.SendtoGrave(g,REASON_EFFECT)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetTarget(s.splimit)
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
end

function s.filter(c)
	return c:IsRace(RACE_SEASERPENT) and c:IsAbleToGrave()
end

function s.splimit(e,c)
	return not c:IsRace(RACE_SEASERPENT)
end