If a creature's power is less than 0 when it's doubled, instead that creature gets -X/-0, where X is how much less than 0 its power is
This nifty gadget was designed to combat that
Cataclysm Cataclysm requires you to control a card capable of winning the game, such as Blightsteel Colossus
Aang, Master of Elements Abrade Aggressive Biomancy Aragorn, the Uniter Armageddon Avatar Aang Better Offer Blue Sun's Zenith Bootleggers' Stash Braids's Frightful Return Brotherhood's End Canopy Baloth Canyon Jerboa Cease // Desist Cease // Desist Cloak of the Bat Curse of Hospitality Cursecloth Wrappings Cut Down Cut Your Losses Deduce Defiant Strike Doomsday Confluence Drivnod, Carnage Dominus Earthbender Ascension Eerie Ultimatum Electrolyze Elesh Norn, Mother of Machines Emergent Ultimatum Exorcise Faramir, Field Commander Fire Lord Azula Fire Lord Zuko Firebender Ascension Frodo Baggins Fuss // Bother Fuss // Bother Gandalf the White Genesis Ultimatum Genesis of the Daleks Gift of Fangs Gimli, Counter of Kills Gix's Command Glimpse of Nature Goblin Bushwhacker Gods Willing Gollum, Patient Plotter Gravkill Grisly Sigil Halo Fountain Hardlight Containment Hazel's Nocturne Helping Hand Hopeless Nightmare Hurloon Battle Hymn Increasing Vengeance Inspired Ultimatum Jetmir's Garden Jin-Gitaxias Kayla's Command Kiora, Sovereign of the Deep Legolas, Master Archer Malcator, Purity Overseer Mana Crypt March of the Canonized Meeting of the Five Merry, Esquire of Rohan Michelangelo's Technique Migloz, Maze Crusher Mishra's Command Mm'menon, the Right Hand Moraug, Fury of Akoum
Getting caught by Mystic Snake often left decks in a much deeper hole than it looked like they were in, suddenly behind on all fronts and demoralized to boot
Blue cards are centered around the mental side of battle knowledge, control, manipulation, and foresight
