Teemo, The Swift Scout

Flying.

When Teemo damages a player that player gains a planted counter. (When an opponent draws a card, they flip a coin. If heads, they take 1 damage and remove a planted counter. Repeat until a tails if flipped or all planted counters are removed.)

Level up (When you've granted 15 or more planted counters grant Teemo +1/+1 and "When Teemo damages a player, double that players planted counters. Teemo no longer grants a planted counter when he damages a player.")