Legendary Creature — Phyrexian Elf Warrior
3 / 3
Whenever a creature you control with power 2 or less enters, you get an experience counter.
At the beginning of combat on your turn, put X +1/+1 counters on another target creature you control, where X is the number of experience counters you have.
Experience counters are the second kind of counters a player can have, joining poison.