If this were me, I would try to trade or sell at a slight loss in person if I were trying to dump the cards quickly
Card advantage and open mana on the same turn gives control decks exactly what they want
Sentinel Sliver
2 from 3 p.m.midnight PT will receive a Magic Online code, distributed by Extra Life, that redeems for one of each of the following: 1 random alternate-art shock land (chosen from among Blood Crypt, Temple Garden, Godless Shrine, Watery Grave, Hallowed Fountain, Sacred Foundry, Overgrown Tomb, Steam Vents, Stomping Ground, and Breeding Pool) 1 nontradeable Ajani, Extra Life Mascot avatar 1 nontradeable Twilight Sparkle, Princess of Magic and Friendship avatar Extra Life playmats, shirts, pins, and stickers sold through the MTG Pro Shop.
I was also packing a single copy of Enduring Renewal for some reusable mischief
An excellent card for a deck that focuses on graveyard mechanics, and there are plenty of those in multiple formats