Senator Peacock is a rare Legendary Creature — Human Advisor card from Ravnica: Clue Edition (CLU), collector number 2. Current market price: $0.45, TCGplayer market prices via Scryfall.
Artifacts you control are Clues in addition to their other types and have "{2}, Sacrifice this artifact: Draw a card." Whenever you sacrifice a Clue, target creature can't be blocked this turn.