I think the big mistake was the printing of that broken fish. I mean, Train, don't you think you'd hate blue somewhat less if there'd never been a Mystic Remora? I know obviously there are the other tricks like Timetwister, Ancestral Recall, Mana Drain, Time Walk, Force of Will, Braingeyser, Arcane Denial, Intuition, Boomerang, Stroke of Genius, Sleight of Mind, Morphling, Dream Halls, Dimishing Returns, Accumulated Knowledge, Counterspell, Ophidian, Rainbow Efreet, Force Spike, Arcane Laboratory, Time Spiral, Equlibrium, Hurkyl's Recall, Donate, Windfall, Mind over Matter, Meditate, Daze, Attunement, Thieving Magpie, Mana Leak, Power Sink, Time Warp, Frantic Search, Tinker, Gush, Back to Basics, Treachery, Capsize, Palinchron, Rebuild, Snap, Opposition, Aura Thief, Forbid, Mana Severance, Energy Field, Tradewind Rider, Intruder Alarm, Volrath's Shapeshifter, Curiosity, Mystical Tutor, Merchant Scroll, Stasis, Impulse, Brainstorm, Prosperity, Mana Short, Illusions of Grandeur, High Tide, Lord of Atlantis, Recall, Power Artifact, Serendib Efreet, the list goes on and on...
But the Remora's the real killer...