Sphinx of the Guildpact is a uncommon Artifact Creature — Sphinx card from Ravnica Allegiance (RNA), collector number 241. Current market price: $0.09 (foil $0.36), TCGplayer market prices via Scryfall.
Sphinx of the Guildpact is all colors. Flying Hexproof from monocolored (This creature can't be the target of monocolored spells or abilities your opponents control.)