There are not many premier events right now, so its hard to prove a deck in a competitive environment
Commanders The only serious contender in the deck is the backup commander Wildsear, Scouring Maw, a pretty unique enchantress that replaces the traditional card draw with a cascade trigger
Its a cool mechanic here, but beware if you leave an army for your last adversary
Outside of a few very specific cards (which will be mentioned first) that require deck sizes above the minimum, all the other reasons you might want to are more fitting to casual magic: Battle of Wits - A win condition that specifically requires you to have more than 3 times the minimum deck size left in your deck to win means starting with about 4 times that minimum, if not more
Ultima Demons sometimes have a small chance appearing at Midlight's Deep after completing it, meaning that if Ramza forgot to learn Ultima during some very limited opportunities in Chapter 4, he is able to learn it there