Omniscience

Enchantment

You may cast spells from your hand without paying their mana costs.

CMC
10
Mana cost
{7}{U}{U}{U}
Color identity
U
Rarity
mythic
Set
Foundations
Price
$5.56
EDHREC rank
#1027
Buy on TCGplayer
Omniscience card art
Omniscience turns your hand into an unlimited resource — every spell costs nothing, and a single draw effect after it resolves ends the game. Ten mana is a real cost, but commanders like Jhoira of the Ghitu can suspend it for free, collapsing that barrier entirely.

Best Commanders

Commanders with the highest synergy

01
Jhoira of the Ghitu

Jhoira of the Ghitu

60.4% of decks · synergy 0.56

Jhoira of the Ghitu suspends Omniscience for two mana, meaning it hits the battlefield without ever demanding the full ten — the synergy score of 0.56 reflects just how cleanly these two cards form an engine together.

03
Neera, Wild Mage

Neera, Wild Mage

50.6% of decks · synergy 0.46

When Neera, Wild Mage flings a spell into the stack and randomly hits Omniscience, the game frequently ends on the spot; the 0.46 synergy reflects how reliably that payoff justifies the slot.

04
Aminatou, Veil Piercer

Aminatou, Veil Piercer

45.5% of decks · synergy 0.42

Aminatou, Veil Piercer can blink Omniscience to reset any enters-the-battlefield triggers stapled to it, and the enchantment's raw effect pairs with Aminatou's top-deck manipulation to guarantee gas after it lands.

05

Jin-Gitaxias

50.4% of decks · synergy 0.42

Jin-Gitaxias fills your hand the moment it connects, and Omniscience means every card drawn off that trigger is a free spell — the two cards together convert a single combat step into a full win condition.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander
legacy
modern
pioneer
standard
vintage
pauper
oathbreaker

Omniscience is legal in every major Constructed format but almost never sees competitive play outside Commander — ten mana is simply too slow for Legacy, Modern, or Pioneer, where the game is often decided before you reach that threshold. In Commander, the calculus flips: slower games, ramp-friendly color identities, and powerful tutors make assembling ten lands or cheating Omniscience into play both realistic and backbreaking. Oathbreaker can support it in the right shell, but the 20-life starting total accelerates games enough that the payoff window shrinks. Standard-legal printings exist, but no Standard environment has ever been slow enough for Omniscience to matter competitively.

Key Combos

Combo lines featuring this card

Budget Alternatives

Cheaper options that do most of the same work

Rielle of the Reliquitae and other draw-payoff engines aside, the closest budget stand-ins for Omniscience are Dream Halls and Fist of Suns — both reduce spell costs to near zero in the right deck, though each comes with meaningful restrictions Omniscience ignores entirely. If the goal is simply "cast everything in hand for free," no card under a few dollars replicates that cleanly; the cheaper options trade universality for narrow conditions, which is the honest cost of budgeting away from Omniscience.

Price Context

Current price

$5.56 mid tier

At $5.56, Omniscience sits in a rare mid-price pocket for a card of its raw power level — multiple reprints have kept it accessible without pushing it to bulk. The price is stable; it's been reprinted enough times that another reprint is unlikely to crater it further, and demand from Commander keeps a firm floor under it.

Explore

← All cards

Updated . Data from Scryfall, EDHREC, and Commander Spellbook.