Clues: An artifact that can be sacrificed for two colorless mana to draw a card
Warehouse Krark's Thumb Krark, the Thumbless Mana Clash Mana Crypt Mana Screw Mijae Djinn Mirror March Mirrored Depths Mogg Assassin Molten Birth Molten Sentry Mutalith Vortex Beast Negative Zone Portal Odds // Ends Odds // Ends Okaun, Eye of Chaos Orcish Captain Planar Chaos Plasma Caster Pokey, the Scallywagg (playtest) Puppet's Verdict Rakdos, the Showstopper Ral Zarek Ral, Monsoon Mage Risky Move Scoria Wurm Setzer, Wandering Gambler Skittish Valesk Skyclaw Thrash Sorcerer's Strongbox Squee's Revenge Stitch in Time Tavern Scoundrel Tavern Swindler The Gold Saucer Tide of War Unleash the Flux
4 Yasharn Keeps Your Opponents Off Phyrexian Mana While a great Commander for a Stax deck, Yasharn, Implacable Earth has a place here
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One of the rarest, most expensive cards in MTG, Black Lotus has always been the Magic card, and deservedly finds its place up here
Does Madness Ignore Timing