The Urza Block is a block centered on the exploits of Urza Argive. It consists of the expansions Urza's Saga, Urza's Legacy and Urza's Destiny.
''Urza's Saga''
Set history (''Urza's Saga'')
Urza's Saga has a storyline and thematic feel that suggest an artifact-based set, although the set was originally designed to be an enchantment-themed block. According to Mark Rosewater the decision to make the storyline of the set a story about Urza was made only when the design of the set had advanced beyond the point where the mechanical focus of the set could be shifted. Rosewater considers it to contain some of the most powerful artifacts ever released, with many cards now banned in tournament formats.
Storyline (''Urza's Saga'')
The story of Urza's Saga and the later sets in the block are prequels to the former Tempest |Tempest, Stronghold |Stronghold, and Exodus |Exodus sets, explaining the aftermath of the Brothers' War as seen in the Antiquities |Antiquities expansion. Whereas other sets have all five colors of cards referencing the same story, Urza's Saga has each of the five colors showing a different part of the storyline. Green cards detail the conflict on Argoth, which would lead to the events of the Ice Age |Ice Age expansion. Black cards reveal Urza's failed attack on the plane Plane |Phyrexia. White cards document Urza's period of recuperation in Plane #Serra.27s Realm|Serra's Realm. Blue cards explain Urza's founding of an academy on Plane |Tolaria and his temporal experiments. Red cards show Urza's alliance with Shiv. Shiv, Phyrexia, Tolaria, and Serra's Realm are some of the most iconic settings in Magic: The Gathering. Most of the story of this set is written in the book Planeswalker, though the battle of Argoth is from the end of The Brothers' War and the founding of Tolaria and alliance with Shiv are found in Time Streams.
Mechanics (''Urza's Saga'')
Urza's Saga introduced the mechanics of cycling and echo. Cycling cards allow a player to discard that card and pay a mana cost to draw a new card, effectually replacing the card with a new one. In Urza's Saga, the cost for cycling is always two colorless mana, but other costs were used when it appeared in subsequent blocks. Echo is a mechanic that requires the player to pay the casting cost for a permanent again on his/her next turn, or it must be sacrificed. Urza's Saga contained a number of "free" blue spells that allowed the player to untap the same number of lands as the card's converted mana cost upon resolution, freeing land for other use.
''Urza's Legacy''
Set history (''Urza's Legacy'')
Urza's Legacy is the first set to feature premium cards also known as foil cards, inserted randomly into boosters and replacing the card normally found in that rarity slot.
Storyline (''Urza's Legacy'')
Urza's Legacy continues the prequel storyline started in Urza's Saga, following Urza's quest to fight Phyrexia's godlike master, Yawgmoth, and his plans to conquer his home world, Dominaria. After an attempt to manipulate time goes catastrophically wrong, Urza searches for more allies as he builds a skyship to lead the war against Phyrexia. While he is away, the people of his Tolarian Academy have to battle a Phyrexian infestation on the island itself. The story of this set is recounted in the book Time Streams.
Mechanics (''Urza's Legacy'')
Cycling and echo were expanded upon in Urza's Legacy, including with echo permanents that were non-creatures.
''Urza's Destiny''
Set history (''Urza's Destiny'')
Urza's Destiny was the first Expert-level set to be printed under the then-new 6th Edition rules changes; the most notable change seen on cards is the text of creatures. Whereas a card like would be given "Summon Elf" in previous sets, it would now be given "Creature - Elf".
Storyline (''Urza's Destiny'')
With the skyship Weatherlight completed, Urza now works on a eugenics program to create a perfect crew for it, as well as engineering a race of soldiers to fight the Phyrexian invasion. One of his geneticists, Gatha, defects, and uses his knowledge to improve the Keldon race. Meanwhile, the Phyrexians create the plane of Plane #Rath|Rath as a staging ground for the invasion.
Mechanics (''Urza's Destiny'')
Urza's Destiny continued to expand on some of the mechanics introduced in Urza's Saga. It had a number of creatures and auras with abilities that trigger when put into a graveyard from the battlefield. There are also a number of permanents that can be sacrificed to draw a card, reminiscent of the cycling ability.
History and impact
Urza's block ushered in a new era of decks. The period of play after the release of Urza's Saga is often referred to as "Combo Winter" by both players and Wizards staff. Standard and Urza Block constructed decks were so fast that they could often win before turn three. Several articles on the Wizards of the Coast website MagicTheGathering.com discuss various tournaments in which players would mulligan down to half their starting hand size just for the perfect initial hand. A ban on several of the set's most powerful cards followed. The joke of the era was that "the early game was the coin flip, the mid game was the mulligan, and the end game was the first turn." In all, The Urza block has had more cards banned from tournament play than any other block. Over the course of the block's history, 16 different cards have at one point been banned in at least one DCI sanctioned format, nine of which debuted in Urza's Saga.
Notable cards
Notable cards from Urza's Saga included ', ', ', ', ', and '. ' is a notable card from Urza's Legacy, in part because it was one of the cards banned the fastest. One notable card from Urza's Destiny is '.
