Tyvar the Bellicose | March of the Machine: The Aftermath | (NM)

Legendary Creature — Elf Warrior

Whenever one or more Elves you control attack, they gain deathtouch until end of turn.
Each creature you control has “Whenever a mana ability of this creature resolves, put a number of +1/+1 counters on it equal to the amount of mana this creature produced. This ability triggers only once each turn.”