Uldaros Theorix wants a deck that plays sturdy creatures that also deal with opponents' cards. It also suits a deck that casts extra spells for free off the top of its deck.
Mana cost
Blue, Black ()
Power / toughness5 / 5
RarityMythic
Flying
When Uldaros Theorix enters, if you cast him, exile up to one target nonland card of each card type from your graveyard. Copy those cards. You may cast any number of spells with total mana value 6 or less from among the copies without paying their mana costs. (Permanent spells cast this way become tokens.)
Picked for what they do in Uldaros Theorix's deck. When two cards do the same job, the one with the lower comes first. All of them fit Uldaros Theorix's color identity.Mana ValueThe total amount of mana a card costs, all added up. A card costing two generic and one green has a mana value of three. Wizards renamed this from "converted mana cost" in 2021, so older cards and articles may still use the old name.Open the full glossary
explain how Uldaros Theorix works in tricky situations. They come from Wizards of the Coast, the company that makes Magic.RulingThe official answer to how a card works in a tricky situation. Most rulings are written by Wizards of the Coast, the company that makes Magic, and a few are notes from Scryfall, the card database Magic players use. A ruling explains a card. It does not change what the card says.Open the full glossary
Wizards of the Coast21 Aug 2026
If you cast a spell with {X} in its mana cost without paying its mana cost, you must choose 0 as the value for X. This means that X will also be 0 when calculating the mana value of that spell.
Color identityEvery color of mana symbol on a card, in its cost and in its rules text. Your commander's color identity sets the limit for your whole deck: every other card has to fit inside it. A deck led by a green and white commander cannot play a card with any blue in its color identity.Open the full glossaryUBPlayers write colors as letters: U for blue, B for black. Blue is U because B was already taken by black.MidrangeMidrange decks play solid creatures that also deal with opponents' cards, attacking when it is safe and defending when it is not. They sit in the middle: slower than an all-out attacking deck, sturdier than a deck built to answer everything.Open the Midrange pageValue CreatureA creature that does two jobs: it deals with an opponent's card when it arrives, then stays as a real attacker. Its enter the battlefield ability destroys, damages, counters or bounces something, and it has 3 or more power or an ability like flying that makes it hard to block. Answering your opponent and pressuring them with the same card is what a Midrange deck is built on. Shriekmaw, Meteor GolemOpen the Value Creature pageGraveyard HateEmpties graveyards or stops cards from coming back out of them, shutting down decks built on reusing their graveyard. Bojuka Bog, Scavenger Grounds. It answers a whole plan rather than one card: without it, something like Eternal Witness keeps returning the same card all game.Open the Graveyard Hate pageRecursionBrings cards back from the graveyard: to your hand, to the battlefield, or letting them be cast again from where they lie. Eternal Witness, Reanimate, VictimizeOpen the Recursion pageCascade/Free CastCascade decks cast extra spells for free, straight from the top of their deck, every time they cast the right card. Cascade turns over cards from the top of your library until it hits a cheaper spell, which you may cast without paying for it.Open the Cascade/Free Cast pageFree CastCan be cast without paying its mana cost when a condition is met, often "if you control your commander". Because it costs nothing, you can still answer something after your mana is already spent. Fierce Guardianship, Deflecting SwatOpen the Free Cast pageEvasionAn ability that makes a creature hard to block, so its attacks reach the player. Flying, menace, landwalk and plain 'can't be blocked' are the common kinds.Open the Evasion page
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