Why exactly do you, the Planeswalker, lose 4 life when your creature dies in werewolf form
Going further, it ensures a game of Commander can always fire as you can always lend a deck to a player
Long story short, Price of Fame is probably one mana too expensive to be good, but thats true for a lot of cards that fill in the gaps for decks relying on synergistic effects
Auras do a good job of showing a change in something so I was proposing that the Simic guild would have a bunch of mutation-themed auras as well as creature with this ability to put them on
If you can fetch it up from your library and make this a consistent thing, then you can literally take over a game
Then at the beginning of combat on your turn you can look at the top five cards of your library and put a creature from among them directly onto the battlefield