Titania's Chosen 

Creature — Elf Archer
Whenever a player casts a green spell, put a +1/+1 counter on this creature.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Creature — Elf Archer
Whenever a player casts a green spell, put a +1/+1 counter on this creature.