If you have many cards you'd like to sell quickly, use Auctions to let people bid on your stack
But keep an eye on some of Destined Rivals' most underrated cards, as they might be affordable now, but might quickly rise when the set disappears from shelves
The most famous is Serum Powder while it's in your opening hand, you may exile that entire hand and draw that many cards, effectively a free extra mulligan
At the very least one could determine that they are unaltered, but were getting into super cool levels of forensic analysis into determining whether the layers of ink on top match the chemical composition of the ink layers on bottom
Demilich An astute viewer might notice a trend in a few of my choices and have a bone to pick with me, but I can assure you that the fanciest of all skulls is a fun and aggressive value engine

Eldrazi Tron (7.1% of the Winner's Metagame) 4 Eldrazi Temple 4 Urza's Mine 4 Urza's Power Plant 4 Urza's Tower 4 Kozilek's Command 4 Ugin, Eye of the Storms 4 Expedition Map 4 Ugin's Labyrinth 4 Devourer of Destiny 4 Karn, the Great Creator 4 Thought-Knot Seer 4 Mind Stone 3 Glaring Fleshraker 2 Dismember 1 Swamp 1 Vexing Bauble 1 Ulamog, the Ceaseless Hunger 1 Trinisphere 1 Sire of Seven Deaths 1 Snow-Covered Wastes 1 Chalice of the Void 2 Disruptor Flute 1 Trinisphere 1 Tormod's Crypt 1 Ensnaring Bridge 1 Liquimetal Coating 1 Cityscape Leveler 1 The Stone Brain 1 Torpor Orb 1 Walking Ballista 1 Extinguisher Battleship 1 The Filigree Sylex 1 Chalice of the Void 1 Skysovereign, Consul Flagship 1 Vexing Bauble Eldrazi Tron harnesses the iconic trio of Urza's Mine, Urza's Tower, and Urza's Power Plant to enable explosive openings