Mana Vapors

Set against an entire turn cycle, this is a sorcery-speed denial spell that wants to be a Time Walk and never quite arrives: instead of taking your opponent's turn, it tries to strip the mana from it. The targeting is sharper than the effect, though. It points at the player, not their lands, which means it sails past hexproof or shroud printed on any individual land and treats the whole battlefield as one object. Cast it on your own turn and your opponent reaches their untap step with their lands staying tapped; the only fresh mana they get is whatever they can wring from a land drop or a ritual. The trouble is the cost-benefit math. Skipping an opponent's untap step is a tempo play that looks like a one-turn lock but functions as a delay; every land comes back the turn after, and you have spent a card to buy time rather than advance a board. Because it is a sorcery, you cannot ambush them on an end step; the lock has to be set up in advance, so the turn you buy is one you need a plan for before you cast. Without a way to punish the dead turn (an attacker already on board, a clock ticking), the tempo evaporates. The design reads as a fragment of an older blue, when the color's denial toolkit reached toward soft resource locks rather than the hard counters and bounce that came to define it.