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Boomer Scrapper

Creature — Human Soldier

Whenever this creature enters or attacks, you lose 1 life and create a Junk token. (It's an artifact with ", Sacrifice this token: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.") Whenever a token you control leaves the battlefield, put a +1/+1 counter on this creature.