Primordial Mist

Manifest was built as a face-down mechanic that keeps its options open: any card goes onto the battlefield as a 2/2, and only creature cards can be turned face up for their mana cost. This enchantment does two things with that framework that no single manifest source could. First, it turns the end step into a recurring engine, seeding a face-down 2/2 every turn regardless of what the top card actually is. Second, and this is where the design gets clever, its activated ability sidesteps manifest's built-in limitation entirely: exiling a face-down permanent face up lets you play that card, creature or not. The library's noncreatures (lands, instants, sorceries, enchantments) that manifest would otherwise strand as vanilla 2/2s become castable again, at the cost of one turn's delay and full mana. The tension the card resolves is manifest's central problem: half your deck can never flip up. By reframing the flip as exile-and-play rather than turn-face-up, it converts blind top-of-library gambling into a slow impulse-draw structure that respects timing rules, so instants stay instant-speed and sorceries stay sorcery-speed. The colorless 2/2s are the smoke; the blue enchantment underneath is the engine. It is a durable value structure rather than a bomb, one that asks you to treat your own library as a face-down toolbox and pay the tax to open it.