Light of the Legion 
Creature — Angel
Flying Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) When this creature dies, put a +1/+1 counter on each white creature you control.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL