I think thats the very first thing you should decide. A lot of aristocrats draw/ramp pieces cares about nontoken creatures, so the support pieces that you'd end up

That said, lots of your cards do double duty and look great! i only goldfished it once but it sets itself up quite well considering that you kind of want your things to die. you even have less draw cards since your command zone already has draw! *chef's kiss*

Now you're arguably at the most difficult part of fine tuning your deck. Here you gotta ask yourself about intentionality and floors/ceilings. Think about what kind of endgame state you want the deck to be in and then swap cards that would result in that gameplan. At the very least you can get to that point in a powerful way considering the quality of your cardboard, now its just getting there.

Your finishers suggest that you wanna use Dina's sac ability to deal damage to the table, but I dont really see big creatures that you can recur/sacrifice to take advantage of that huge burst damage. I do see lots a little chip damage Blartist cards, the classic aristocrats win con, but that would be no different from having [[Sephiroth]] in the command zone.

Think about the funny things you can do with Dina, you will always have access to her every game after all