Data, Exploring Humanity wants a deck that makes everyone swap their hand for a fresh one. It also suits a deck that casts extra spells for free off the top of its deck.
Mana cost
Blue ()
Power / toughness4 / 4
RarityRare
Seek out — Whenever you draw your second card each turn, discover 4. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)
Picked for what they do in Data's deck. When two cards do the same job, the one with the lower comes first. All of them fit Data'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
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 glossaryUPlayers write colors as letters: U for blue. Blue is U because B was already taken by black.WheelsWheel decks make every player swap their whole hand for a fresh one, then profit from all that drawing. One way is making opponents lose life for each card they draw. The name comes from the card Wheel of Fortune.Open the Wheels pageDraw PayoffRewards card drawing: it triggers whenever you or an opponent draws a card, rather than drawing cards itself. Pair it with cards that make everyone draw, like Wheel of Fortune or Howling Mine, so the cards everyone else gets end up working for you. Smothering TitheOpen the Draw Payoff 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 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 pageLibrary ManipulationCards that let you look at, rearrange or play from the top of your deck, so you control what you draw next.Open the Library Manipulation page
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