You cast Demonic Consultation and name any card that you know isn't in your library (for this deck, might I recommend Forest?) Then, when your entire library is exiled, just play Thoracle from your hand and bada-bing, you win
There's a wide range to consider with the cards on offer spanning multiple generations, types and evolutions
BPhillipYork: This is an instant cEDH card that is going to be used to stax out certain kinds of decks and things, and also can be used to create lockouts of certain deck archetypes or full on lock situations
Theyre useful abilities for the tribes, and even for commanders with the right creature types
2 Quietus Spike A One Hit KO All it takes is one hit with Astarion, or any creature, equipped with a Quietus Spike to completely remove them from the game
I hope one day I can bring the card back into the cube fold but we are going to need more Abbots of Keral Keep for that to happen!