Otharri, Suns Glory One of the most lethal Boros creatures you can slip into your Cube, Otharri, Suns' Glory often reminds me of Minsc & Boo, Timeless Heroes
Bloodghast returns to the battlefield from the graveyard every time you play a land
Gandalf the White Gandalf the White is a nice addition to both Teysa Karlov and Elesh Norn, Mother of Machines decks, but I think theres a decent build of this Mithrandir as a commander of the kind of deck where you run Teshar, Ancestor's Apostle
The Huntsman's Redemption is fine for Standard, but forcing you to spend your follow-up turn casting the card you just tutored makes it pale in comparison to some of the other creature tutors
So given that creatures have been given a lot more oomph over the past few years, its time to re-evaluate the best creatures of all time