Powerbalance checks off all the relevant boxes for me: its a callback to an awesome card from years past, it forces interaction (in other words, makes me have to pay attention to the game), it gives you free stuff, and it allows for fun top-deck manipulation
For five mana you can exile Bilbo to search your library for any number of creature cards and put them all on the battlefield
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Appropriate for a Beholder
While Suture Priest will trigger when an opponent has a creature enter the battlefield, but only dealing 1 damage to that opponent, not all of them
Even a card like Greater Good can be turned into a self-mill piece so long you have enough creatures to sacrifice and cards to discard, though it might not have been on your radar in regards to self-milling before
