Three Dog, Galaxy News DJ is a rare Legendary Creature — Human Bard card from Fallout (PIP), collector number 430. Current market price: $0.50 (foil $0.82), TCGplayer market prices via Scryfall.
Whenever you attack, you may pay {2} and sacrifice an Aura attached to Three Dog. When you sacrifice an Aura this way, for each other attacking creature you control, create a token that's a copy of that Aura attached to that creature.