Thalia's Lieutenant 
Creature — Human Soldier
When this creature enters, put a +1/+1 counter on each other Human you control. Whenever another Human you control enters, put a +1/+1 counter on this creature.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL