Omniscience (FDN)

Enchantment

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

Essential card advantage engine for blue combo and control decks. Omniscience turns your hand into a free resource, enabling explosive turns where you chain multiple spells without mana constraints—a hallmark of high-powered blue strategies in Commander, Legacy, and Vintage. The ten-mana investment is steep, but the payoff is immediate and game-ending; decks built around it (Omni-Tell, Show and Tell shells, or ramp-heavy control) routinely win the turn it resolves. A format staple wherever blue combo is viable.

Foundations — Mythic