Dovin, Grand Arbiter is a mythic Legendary Planeswalker — Dovin card from Ravnica Allegiance (RNA), collector number 167. Current market price: $0.42 (foil $2.16), TCGplayer market prices via Scryfall.
+1: Until end of turn, whenever a creature you control deals combat damage to a player, put a loyalty counter on Dovin. −1: Create a 1/1 colorless Thopter artifact creature token with flying. You gain 1 life. −7: Look at the top ten cards of your library. Put three of them into your hand and the rest on the bottom of your library in a random order.