1 Uncharted Haven
1 Underground River
1 Unknown Shores
1 Urza's Fun House
1 Uthros, Titanic Godcore
1 Ubul Sar Gatekeepers
1 Ugin's Construct
1 Ugin's Insight
1 Ulamog's Crusher
1 Ulamog's Despoiler
1 Ulamog's Nullifier
1 Ulamog's Reclaimer
1 Ulrich's Kindred
1 Ultima Weapon
1 Ultimate Magic: Holy
1 Ultimate Magic: Meteor
1 Ultimate Price
1 Ultimecia, Temporal Threat
1 Ultimecia, Time Sorceress // Ultimecia, Omnipotent
1 Ultros, Obnoxious Octopus
1 Ulvenwald Bear
1 Ulvenwald Captive // Ulvenwald Abomination
1 Ulvenwald Mysteries
1 Umara Entangler
1 Umaro, Raging Yeti
1 Umbral Collar Zealot
1 Umbris, Fear Manifest
1 Unblinking Observer
1 Unbreakable Bond
1 Unbreathing Horde
1 Unbridled Growth
1 Unburden
1 Uncaged Fury
1 Uncle Iroh
1 Uncomfortable Chill
1 Uncovered Clues
1 Undead Augur
1 Undead Butler
1 Undercity Dire Rat
1 Undercity Scavenger
1 Undercity Scrounger
1 Undercity Upheaval
1 Undercity's Embrace
1 Underdark Basilisk
1 Undergrowth Scavenger
1 Underhanded Designs
1 Undermine
1 Undying Malice
1 Undying Rage
1 Unexpected Fangs
1 Unexpected Request
1 Unfathomable Truths
1 Unfinished Business
1 Unflinching Courage
1 Unfortunate Accident
1 Unhallowed Phalanx
1 Unholy Hunger
1 Unholy Officiant
1 Unholy Strength
1 Unified Front
1 Unified Will
1 Uninvited Geist // Unimpeded Trespasser
1 Unity of Purpose
1 Universal Solvent
1 Unlawful Entry
1 Unlicensed Disintegration
1 Unlucky Cabbage Merchant
1 Unlucky Witness
1 Unmake the Graves
1 Unnatural Aggression
1 Unnatural Endurance
1 Unnatural Growth
1 Unnatural Predation
1 Unnatural Restoration
1 Unravel
1 Unruly Mob
1 Unscrupulous Contractor
1 Unstable Obelisk
1 Unsummon
1 Untamed Hunger
1 Untethered Express
1 Unwavering Initiate
1 Unwilling Ingredient
1 Unyielding Krumar
1 Updraft Elemental
1 Urabrask's Anointer
1 Urban Evolution
1 Urbis Protector
1 Urborg Drake
1 Urborg Panther
1 Urborg Skeleton
1 Urborg Uprising
1 Urianger Augurelt
1 Uruk-hai Berserker
1 Urza's Ruinous Blast
1 Uthros Psionicist
1 Uthros Scanship
Sideboard: