Mog - Cause Moogles are cool. I mean, who can not love that little yellow ball thing on their heads?

Shadow - Throws sharp pointy things.

Umaro - Throws party members

Cyan/Celes/Terra/Edgar/Sabin depending on what the voices in the head tell me.

If I have a fighting type person such as Cyan, Mog becomes my main magical moogle. I usually use the espers to push his magic ability way up. Then, throw on an economizer and gem box and he is ready to do the 2 ultima a turn deal on whoever I do not like.