Brave Falconhawk

Creature — Bird3/3

Flying When this creature enters, create a Contested Game Ball token. (It's a card from The Lost Caverns of Ixalan. Look it up!) Whenever this creature attacks, if you control a Contested Game Ball, put +1/+1 counters on this creature equal to the number of point counters among Contested Game Balls you control.

Not legal in Commander