geez.. so frustrating...HELP!!!

Ok, I was so happy when I found the item Ability: Item Ursa Warrior Summon, cuz I needed a Feral Spirit like Spell that allows me to summon 2 different Units.
Now, since this Spell doesn´t have any string it seem´s like my Enemy Hero doesn´t want to use it as frequent as he used Feral Spirit.(He almost doesn´t use it at all)

Is there any other, non-item, spell hat allows you to summon 2 different Units or a way to let him use the spell more frequent?
I already tried giving the Ability stringsof other Sbilities like : Feral Spirit, LocutusSwarm,Summon Water Elemental ...

hodi

As I though :p

Well then, let´s move this skill to the other "can not be realised due to a lack of experience" Abilities. (Wow, this folder´s gonna explode soon)

hodi (Pissed) (Neutral Hostile)

There's a demon summoning ability that allows you to summon any number range of several different unit types.

Try Archimond's "Dark Portal" spell, it can summon multiple creature types. By default it summons Fel Hounds and Doom Guards.

Hmm I´m so proud that I think I´ve earned this tripple post :p

Made the Skill based of Carrion Beetles and made a trigger that creates 2 corpses within 200 of the Caster, once he begins to cast.

HA !!! HAHAHAH !!! I wasted 3 hours trying to make this spell with every possible Summon Spell there is, made 6 Triggers for 1 Ability and nothing worked, and now this... what a waste... *whine*... why are you reading this? ... This is just between me and the other me... stop watching :////

hodi (Relived) (Neutral Passiv)

Oh some1 answered... seems like they had better ideas what do u think hodi? yea seems so ... well, thx guys

hodi (zZz) (Creeps)

Couldn't you have just based it off of Serpent Ward and made it summon 2 of the unit types that you wanted?

What´s the name of this Ability ? Demon Portal doesn´t work at all.

you can´t summon 2 different Types with Serpent Ward as base.