Thalia's Lieutenant

Thalia's Lieutenant {1}{W}

Creature - Human Soldier | Power/Toughness: 1 / 1 (CMC 2)
When Thalia's Lieutenant enters the battlefield, put a +1/+1 counter on each other Human you control.
Whenever another Human enters the battlefield under your control, put a +1/+1 counter on Thalia's Lieutenant.