Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
(This card is always treated as "Umi".) All WATER monsters on the field gain 200 ATK/DEF. Reduce the Level of all WATER monsters in both players' hands and on the field by 1.
--伝説の都 アトランティス
--A Legendary Ocean
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--level
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_UPDATE_LEVEL)
	e2:SetRange(LOCATION_FZONE)
	e2:SetTargetRange(LOCATION_HAND|LOCATION_MZONE,LOCATION_HAND|LOCATION_MZONE)
	e2:SetTarget(aux.TargetBoolFunction(Card.IsAttribute,ATTRIBUTE_WATER))
	e2:SetValue(-1)
	c:RegisterEffect(e2)
	--Atk
	local e3=e2:Clone()
	e3:SetCode(EFFECT_UPDATE_ATTACK)
	e3:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e3:SetValue(200)
	c:RegisterEffect(e3)
	--Def
	local e4=e3:Clone()
	e4:SetCode(EFFECT_UPDATE_DEFENSE)
	c:RegisterEffect(e4)
end