Legendary Planeswalker â Vivien
+2: Put two +1/+1 counters on up to one target creature.
âˆ’3: Target creature you control deals damage equal to its power to target creature you don't control.
âˆ’9: Creatures you control get +4/+4 and gain trample until end of turn.
Vivienâ€™s last ability affects only creatures you control at the time it resolves. Creatures you begin to control later in the turn wonâ€™t get +4/+4 or gain trample.
If either creature is an illegal target as Vivienâ€™s second ability tries to resolve, the creature you control wonâ€™t deal damage.