All cards

Urborg Phantom INV 132 $0.11 - 0.45 Retro frame 1 printing Urborg Shambler INV 133 $0.30 Retro frame 1 printing Urborg Skeleton INV 134 $0.18 - 1.98 Retro frame 3 printings Urza's Filter INV 318 $5 - 19 Retro frame 1 printing Unnatural Hunger MMQ 169 $3 - 11 Retro frame 1 printing Uphill Battle MMQ 222 $5 - 12 Retro frame 1 printing Unseen Walker 6ED 262 $0.15 - 0.31 Retro frame 2 printings Unyaro Griffin 6ED 49 $0.22 - 0.24 Retro frame 2 printings Unworthy Dead USG 163s from $0.34 Retro frame 2 printings Urza's Contact Lenses UGL 82 $0.91 Retro frame 1 printing Urza's Science Fair Project UGL 83 $0.84 Retro frame 1 printing Unstable Shapeshifter TMP 100 $1 Retro frame 1 printing Uktabi Efreet WTH 143 $0.04 Retro frame 1 printing Urborg Justice WTH 84 $3 Retro frame 1 printing Urborg Stalker WTH 85 $0.88 Retro frame 1 printing Undying Beast POR 113 $0.15 Retro frame 1 printing Urza PVAN 407 $19 In deck Series 4 Oversized 1 printing Updraft 5ED 133 $0.23 - 0.24 Retro frame 2 printings Urza's Avenger 5ED 405 $0.41 - 14.58 Retro frame 6 printings Urborg Mindsucker VIS 71 $0.15 - 10.66 Retro frame 2 printings Uktabi Faerie MIR 247 $0.14 Retro frame 1 printing Unerring Sling MIR 322 $0.19 Retro frame 1 printing Unfulfilled Desires MIR 285 $8 Retro frame 1 printing Unyaro Bee Sting MIR 250 $0.25 Retro frame 1 printing Undergrowth ALL 102a $0.20 - 0.23 2 printings Unlikely Alliance ALL 20 $0.23 1 printing Urza's Engine ALL 135 $0.25 1 printing Undertow LEG 82 $2 1 printing Unholy Citadel LEG 309 $6 1 printing Ur-Drago LEG 268 $18 1 printing