Dog Walker

At the beginning of each player's upkeep, that
player may choose a Dog, Hound, or Wolf
creature they control and have you gain control
of it until the end of your next turn. If they do,
put a +1/+1 counter on that creature.
Each Dog, Hound, and Wolf creature with a
+1/+1 counter on it can't attack its owner and
has "At the beginning of your upkeep, you
gain 2 life."