Mind's Dilation

Enchantment

Whenever an opponent casts their first spell each turn, that player exiles the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.

Infinite wisdom cannot be contained within a single mind.

Iain McCaig

Legalities

NOT LEGALStandard
LEGALPioneer
LEGALModern
LEGALLegacy
LEGALVintage
LEGALCommander
LEGALOathbreaker
NOT LEGALAlchemy
LEGALHistoric
LEGALBrawl
LEGALTimeless
NOT LEGALPauper
LEGALPenny