(It's also a good madness enabler too, fyi.) 4
It reads: At the beginning of your end step, if one or more creatures died this turn, you gain that much life and distribute that many +1/+1 counters among creatures you control. Basically, if youre playing a deck that kills things or sacrifices your own creatures, especially in token decks, you get a lot of life and can make your creatures stronger
Its a very versatile mod, as it adds so much more than its name implies
Use Sneak Attack with effects like Terror of the Peaks to turn all of your creatures into souped-up Lightning Bolts with bodies
Four variants release Nov
Later in the game, should the worst happen to the Pilot, you can pay four mana to bring it back to your hand from the graveyard