Greenbelt Guardian (DFT 164)

Creature — Elf Ranger • Mana cost: {1}{G} • Aetherdrift • Uncommon

{G}: Target creature gains trample until end of turn.
Exhaust — {3}{G}: Put three +1/+1 counters on this creature. (Activate each exhaust ability only once.)

Illustrated by Tianxing Xu.