The best wheel effects for reanimation must discard, not shuffle cards back into the library
Doctor Octopus, Master Planner I think we could have handled a mana value of 8 with a way to reduce the cost on Doctor Octopus, Master Planner, and I like the cute maximum hand size increase
Its particularly strong in Pioneer, where it replaced Thing in the Ice in Izzet Phoenix decks
Legends like Judith, the Scourge Diva and Teysa Karlov make great commanders for an Aristocrats deck, but any creature that sacrifices other creatures or does something when you do will work
The reverse side can be pretty diverse and can be any card type, including instants and sorceries (although we only have creatures and enchantments in black so far)
Most are desparked Planeswalkers, with some, like Nahiri, Forged in Fury, look set to make a big splash on Commander