Inquisitorial Rosette is a rare Artifact — Equipment card from Warhammer 40,000 Commander (40K), collector number 159. Current market price: $2.90, TCGplayer market prices via Scryfall.
Inquisition Agents — Whenever equipped creature attacks, create a 2/2 white Astartes Warrior creature token with vigilance that's attacking. Then attacking creatures gain menace until end of turn. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)