Dungeon Geists

Most tap-down effects expire the moment they resolve: an Icy Manipulator needs to fire again next turn, and the creature it tapped is back in action a turn later. This Spirit ties the lock to its own survival instead, parking the most dangerous creature an opponent controls for as long as you control the 3/3. That single clause rewrites every combat that follows. The opponent's bomb is not killed, so it dodges destruction-based answers and stays out of the graveyard, but it also never blocks, never attacks, never crews, never taps for an ability. The exchange handed back is symmetric and clean: kill the Spirit and the lock breaks, the locked creature untapping on its next turn as if nothing happened. So the body and the effect are deliberately one permanent. The opponent who wants their threat back has to make you lose control of the Geists, most simply by removing them. Flying earns its place here not as protection (spot removal kills a flier as easily as anything) but as a clock the opponent has to honor while the lock holds, pushing them toward answering the Spirit and freeing the bomb rather than letting both problems sit. It is one of blue's cleaner statements of preference for neutralizing a creature over destroying it, with the neutralization deliberately load-bearing on a fragile evasive body rather than stapled onto an enchantment that would be harder to undo.