Fireglass Mentor Bloomburrow Magic: The Gathering The Winter Sale starts today two weeks of sales in the MTG Arena store, including new cosmetic bundles, like Tiny Bones and retro card styles. As part of yesterday's B&R Announcement, Mentor, 63 cards Magic: The Gathering Seven Tail Mentor Magic card (44932) Playin Set Boosters: Up to 4 Rares, Art Cards, and 300 Cards from "The List" Magic the Gathering Bloomburrow Uncommon Burrowguard Mentor #206