This writer wouldnt call the card overpowered because there are answers to it, but if it got rolling, youd have your opponent top-decking rather quickly
I can see the argument for playing it if, like Orzhov Control, it absolutely demolishes the creature decks
The Master, Multiplied The Master, Multiplied basically overrides all the downside with mechanics like myriad because you wont need to sacrifice the tokens you get until the end of turn
One of the notable ones to me is Nick Valentine, Private Eye
The Mimeoplasm The Mimeoplasm is a classic Sultai commander thats a stronger copy of a creature in a graveyard when you cast it
The best bit is it is so easy to get around the once-each-turn limitation if you just blink it with Displacer Kitten and start the whole thing off again