You can be at 10 life, pay like 3 or 4 life to get a benefit, and at your next end step, your life returns to 10 (or 20, in EDH)
Sell them to the shop based on their estimated number and bulk collection price
While it seems like an expensive price to pay for drawing cards, black rarely gets this kind of on-damage card advantage and its also not drawing cards
I think this will wind up being pretty restricted to Knight decks, like the new Sidar Jabari of ZhalfirSidar Jabari of Zhalfir, although The Council of FourThe Council of Four really likes Knight tokens, too
Tesak gives all your Dog creatures unleash, which is a fun flavor win for the card
Joshua Sweet The Doctor In Joshua Sweet we have a compelling bodyguard character capable of taking quite the hit at five will power