Wyll, Blade of Frontiers is a rare Legendary Creature — Human Warlock card from Battle for Baldur's Gate Promos (PCLB), collector number 208s. Current market price: — (foil $7.48), TCGplayer market prices via Scryfall.
If you would roll one or more dice, instead roll that many dice plus one and ignore the lowest roll. Whenever you roll one or more dice, put a +1/+1 counter on Wyll. Choose a Background (You can have a Background as a second commander.)