Avenging Arrow | Instant | | Destroy target creature that dealt damage this turn. | James Ryman
Rootborn Defenses | Instant | | Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.) | Mark Zug
Common Bond | Instant | | Put a +1/+1 counter on target creature.
Put a +1/+1 counter on target creature. | Raymond Swanland