The Scholar of Seas is a rare Legendary Creature — Merfolk Advisor card from Unknown Event (UNK), collector number RZ11b. Current market price: $48.25, TCGplayer market prices via Scryfall.
Other Merfolk you control get +1/+1. When The Scholar of Seas enters the battlefield, choose one of the following cards at random and create a token that's a copy of it: • Judge of Currents • Merrow Reejerey • Lord of Atlantis • Merfolk Sovereign • Sygg, River Guide • Kumena, Tyrant of Orazca