Bound Phylactery

At the beginning of your upkeep, you lose 1 life and amass Zombies 1. (Put a +1/+1 counter on an Osty you control. It’s also a Zombie. If you don’t control an Osty, create a 0/0 black Zombie Osty creature token first.) Whenever a Zombie token you control with power 6 or greater attacks, it gains lifelink until end of turn.