The following "Invoked" Fusion Monsters introduced from Chaos Origins onwards ("Sorath", "Baybarron", "Oceanus", "Dee Anima") require 1 "Aleister" monster and either a monster with one of two Attributes (in the case of the former three) or a monster Special Summoned from the Extra Deck (in the case of "Dee Anima")
He may just be a Commander guy, but the ward is good, and the void ability is good as well
Unfortunately, I was paired against Owyn Kamermans Arceus / Regigigas, arguably the worst matchup that I could hit (outside of a downpair against a 6-1-2 Snorlax or something)
The combos for the kitty are all over the place, the sort of thing you can stumble into accidentally, especially when stuff like Mox Opal/Amber is involved
After all, where one or two chocobo are gathered, you are bound to end up with more