Omega, Heartless Evolution - 347 U FIN

Wave Cannon — When Omega enters, for each opponent, tap up to one target nonland permanent that opponent controls. Put X stun counters on each of those permanents and you gain X life, where X is the number of nonbasic lands you control. (If a permanent with a stun counter would become untapped, remove one from it instead.)

uncommon
Legendary Artifact Creature — Robot
From the Magic: The Gathering set Final Fantasy.