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$4.75 – $14.00
'(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Exile all nonland permanents that aren't legendary.
$19.25 – $24.25
'As this artifact enters, choose a creature type.
Creature spells of the chosen type cost {2} less to cast.
$0.25 – $0.75
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.
$17.00 – $21.25
'As this artifact enters, choose a creature type.
Creature spells of the chosen type cost {2} less to cast.
$22.75 – $25.25
When Urza enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control." Tap an untapped artifact you control: Add {U}. {5}:...
$8.25 – $8.75
'Artifact, instant, and sorcery spells you cast cost {1} less to cast. {7}: If you both own and control Urza, Lord Protector and an artifact named The Mightstone and Weakstone,...
$21.25 – $27.50
'{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.
$28.75 – $42.50
'(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — This Saga gains "{T}: Add {C}." II — This Saga gains "{2},...
$34.75 – $57.75
'(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — This Saga gains "{T}: Add {C}." II — This Saga gains "{2},...
'Whenever an artifact you control is put into a graveyard from the battlefield, if it wasn't sacrificed, you may pay {3}. If you do, draw a card.
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.