Urza's Power Plant
: Add to your mana pool. If you control an Urza's Mine and an Urza's Tower, add to your mana pool instead.
$ 000
Urza's Mine (Pulley)
: Add to your mana pool. If you control an Urza's Power-Plant and an Urza's Tower, add to your mana pool instead.
Urza's Mine (Clawed Sphere)
Urza's Mine
Urza's Incubator
Casting Cost:
As Urza's Incubator enters the battlefield, choose a creature type.
Creature spells of the chosen type cost less to cast.
Urborg, Tomb of Yawgmoth
Each land is a Swamp in addition to its other land types.
Unwinding Clock
Untap all artifacts you control during each other player's untap step.
Unmask
You may exile a black card from your hand rather than pay Unmask's mana cost.
Target player reveals his or her hand. You choose a nonland card from it. That player discards that card.
Unearth
Return target creature card with converted mana cost 3 or less from your graveyard to the battlefield.
Cycling (, Discard this card: Draw a card.)
Underworld Dreams
Whenever an opponent draws a card, Underworld Dreams deals 1 damage to him or her.
Underground River
: Add 1 to your mana pool.
: Add or to your mana pool. Underground River deals 1 damage to you.
Undead Warchief
Zombie spells you cast cost less to cast.
Zombie creatures you control get +2/+1.
Umezawa's Jitte
Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte.
Remove a charge counter from Umezawa's Jitte: Choose one —
• Equipped creature gets +2/+2 until end of turn. • Target creature gets -1/-1 until end of turn. • You gain 2 life.
Equip
Ulamog, the Infinite Gyre
When you cast Ulamog, the Infinite Gyre, destroy target permanent.
Indestructible
Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.)
When Ulamog is put into a graveyard from anywhere, its owner shuffles his or her graveyard into his or her library.