Gregor, Shrewd Magistrate is a mythic Legendary Creature — Human Advisor card from Universes Within (SLX), collector number 21. Current market price: $5.07, TCGplayer market prices via Scryfall.
Skulk (This creature can't be blocked by creatures with greater power.) Whenever Gregor, Shrewd Magistrate deals combat damage to a player, draw cards equal to its power.