Abyss Watchers

At the end of each upkeep, if you don't control
an Abyss Watcher token, create a 5/5 White
Abyss Watcher token and if your opponent
does not control an Abyss Watcher token, create
a 5/5 Black Abyss Watcher token for your
opponent.
If Abyss Watchers would be destroyed, you may
sacrifice an Abyss Watcher token: Abyss Watchers
gains Indestructible until end of turn. Place
3 +1/+1 counters on Abyss Watchers.