Alchemist's Refuge

Flash-granting effects had mostly lived on permanents that hand you instant speed permanently: Vedalken Orrery and Leyline of Anticipation sit on the battlefield and never turn off. This land does the same structural work but rations it. The grant is a one-turn pulse you pay for with a Simic activation, so instead of a static "everything you cast is an instant" you open a window deliberately, on the turn you want to deploy a sorcery-speed threat with counterspell mana untapped, or dump your hand at the end of an opponent's turn. The cost structure governs how it behaves: it taps for colorless on its own, so it never costs you a spell slot to run, but the flash grant demands both green and blue, which means it only meaningfully activates in a deck already committed to those colors. That gating keeps it from being a free splash. The temporary nature matters more than it looks: you cannot leave it on as a passive deterrent the way a static enchantment lets you, so opponents reading your open mana are guessing at a window you may or may not pay to open. It is the activated-ability answer to a question that static permanents had already answered loudly; the trade is repeatability and cost for the flexibility of choosing exactly which turns instant speed is worth paying for.