Wicked Slumber

Tap-down effects used to buy exactly one turn: a creature you froze came back the moment its controller reached untap, and the problem walked right back into combat. Stun counters rewrote that arithmetic by intercepting the untap event itself, and this spell lands two of them at once. Point both at a single threat and it sits locked out of two consecutive untap steps; split them across two creatures and you sideline a pair of attackers or blockers for a beat apiece. Convoke resolves the timing tension neatly: when you are under enough pressure to need this, you also have the bodies to help pay for it, so the very creatures you are protecting can tap in to fund their own protection. Instant speed does the rest, and the honest read on that is preemptive: you freeze a would-be attacker before it can be declared, or lock down a blocker ahead of your own alpha strike, rather than waiting for combat that has already happened. Nothing ever dies here. Everything you touch returns, just later than its controller planned, and that delay is exactly why a tempo tool this cheap and this easy to cast stays fair: it borrows against an opponent's clock without ever stopping it for good. This is blue trading permanence for speed and coverage, buying time against threats it never actually resolves.