Guardians of Akrasa is a common Creature — Human Soldier card from Shards of Alara (ALA), collector number 12. Current market price: $0.07 (foil $0.55), TCGplayer market prices via Scryfall.
Defender (This creature can't attack.) Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)