If healing decks centered around Grand Pabbie become a thing, this Jasmine and the Floodborn Jasmine will certainly make the list
If you are capable of healing your cards, through items, actions, or character abilities, and Beast, Tragic Hero has damage on them at the start of your turn, you can let them attack and then heal them, allowing you to still benefit from the increased strength but keeping them healthy enough to stick around
For example, the Motonui - Island Paradise glimmer means a character that's banished while visiting is put back into the player's inkwell facedown and exerted
Unfortunately, because you dont get to exile a Creature from your graveyard until your end step and the tap ability of The Animus is restricted to Sorcery speed, it can take multiple turns to set up a super strong play