Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect: ● When this card destroys an opponent's monster by battle and sends it to the Graveyard, they discard 1 random card.
--水面のアレサ
--Aquarian Alessa
local s,id=GetID()
function s.initial_effect(c)
	Gemini.AddProcedure(c)
	--Discard 1 random card
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_HANDES)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EVENT_BATTLE_DESTROYING)
	e1:SetCondition(s.con)
	e1:SetTarget(s.tg)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
end
function s.con(e,tp,eg,ep,ev,re,r,rp)
	return Gemini.EffectStatusCondition(e) and aux.bdogcon(e,tp,eg,ep,ev,re,r,rp)
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_HANDES,0,0,1-tp,1)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetFieldGroup(tp,0,LOCATION_HAND)
	if #g==0 then return end
	local sg=g:RandomSelect(1-tp,1)
	Duel.SendtoGrave(sg,REASON_DISCARD|REASON_EFFECT)
end