Each Duskmourn: House of Secrets Commander deck contains 10 Archenemy Conspiracy Cards a way for three players to join forces and defeat a common enemy, taking the screams of terror to the next level
When I first pitched it, I asked if it could happen every 20 packs or so
then, once we have some "draw-two" creatures on the battlefield, we can cast it during our turn (taking advantage of the fact that we get to draw one card during our draw step) to trigger all of our payoffs
Sligh decks used it in Extended
Many players sold off their older cards to fund their new Core decks, which caused the prices of early singles to drop by 40% to 60% on the secondary market
Lands (20) Spells (40) 4 Brainstorm 4 Mystical Tutor 4 Grim Monolith 4 Mana Severance 4 Force Spike 1 Mindslaver 4 Goblin Charbelcher 1 Gilded Lotus 3 Talisman of Progress 2 Talisman of Dominance 4 Tinker 2 Voltaic Key 1 Rushing River 2 Chrome Mox Sideboard And its not just fetchlands that have been doing the shuffling