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Think of that random mythic from a forgotten core set

This serves as a powerful card selection engine that also synergizes beautifully with delirium, where sending different card types to the graveyard is key to victory

Gix, Yawgmoth Praetor Black has a surprisingly deep pool of cheap evasive creatures, and Nether Traitor, Changeling Outcast, Vault Skirge, and Tormented Soul are just a few examples of the cards that enable Gix, Yawgmoth Praetor

Just think of Grunn, the Lonely King attacking alone with Rafiq on the battlefield: Grunn doubles its power and toughness, gets any exalted triggers, and then gains double strike to smash in for over twenty points of damage