Sewer Shambler

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Scavenge {2}{B} ({2}{B}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6o37k714i7pb1h4wm1n831.