Urza Poly Kraken Urza, Lord High Artificer | Illustration by Grzegorz Rutkowski Commander (1) Planeswalker (2) Narset, Parter of Veils Tezzeret the Seeker Creature (1) Instant (20) Brainstorm Counterspell Cyclonic Rift Delay Dig Through Time Dispel Dramatic Reversal Flusterstorm Force of Will Mana Drain Mental Misstep Muddle the Mixture Mystical Tutor Narset's Reversal Negate Pact of Negation Rapid Hybridization Sink into Stupor Swan Song Whir of Invention Sorcery (11) Fabricate Gitaxian Probe Merchant Scroll Personal Tutor Polymorph Ponder Recurring Insight Solve the Equation Time Spiral Timetwister Transmute Artifact Enchantment (6) Back to Basics Copy Artifact Counterbalance Mystic Remora Power Artifact Rhystic Study Artifact (28) Aether Spellbomb Basalt Monolith Codex Shredder Everflowing Chalice Grafdigger's Cage Grim Monolith Isochron Scepter Jeweled Amulet Lotus Petal Mana Vault Manifold Key Mishra's Bauble Moonsilver Key Mox Amber Mox Diamond Mox Opal Pithing Needle Proteus Staff Rings of Brighthearth Sapphire Medallion Sensei's Divining Top Sol Ring Static Orb Tormod's Crypt Torpor Orb Trinisphere Voltaic Key Winter Orb Land (31) Blast Zone Inventors' Fair Island x23 Misty Rainforest Mystic Sanctuary Scalding Tarn Seat of the Synod The Tabernacle at Pendrell Vale Urza's Saga My personal favorite deck is also the one Im currently playing most: Urza, Lord High Artificer, possibly Magic's best artifact commander

However, a d20 easily solves this, as does the Lorcana app (which was not live at the time of review)
For two mana of any color, you can search your library for any dragon, discard it, and Scion of the Ur-Dragon becomes that dragon until the end of the turn
The deck is actually a Colorless Matters deck: the entire deck is colorless, of course, but also we have 15 cards that support colorless matters (Calamity of the Titans, Ugin, the Ineffable, lands like Tomb of the Spirit Dragon)
You've also got Regeneration (Boneknitter), graveyard love (Corpse Connoisseur), graveyard hate (Crypt Creeper), life loss (Organ Grinder), tutoring (Corpse Harvester), edicts (Fleshbag Marauder), Necropotence variants (Graveborn Muse), and can even destroy the occasional enchantment (Quagmire Druid)
Its not fun to watch other players play Magic while youre stuck or locked out