Deadlock Trap

The energy mechanic gave this kind of repeatable tapper something the archetype had never had: a hard ceiling. Each activation costs one energy, and the artifact arrives with exactly two, so without an outside source it taps down targets exactly twice before going inert. That self-limiting design is the whole tension. A permanent that resets every untap step is a soft prison, locking out attackers, blockers, and mana sources turn after turn; capping it at two charges converts a grinding lock into a finite resource you have to spend at the right moments. The secondary clause widens what it answers beyond simple tapping: shutting off activated abilities lets it neutralize a creature's tap-to-do-something engine or a planeswalker's loyalty ability for the turn, not just keep a body out of combat. Note the target restriction that keeps it honest against the wrong board: it points at creatures and planeswalkers only, so a mana rock, a problem enchantment, or an equipped weapon sits untouched. Entering tapped costs it a turn of immediacy, the standard tax on a permanent this controlling. Built to reward decks already accumulating energy, it scales with that engine: feed it more counters and the lock stops being a two-shot answer and starts being a recurring tax on an opponent's best creature or planeswalker. Outside an energy shell it is a measured, deliberately rationed interaction piece; inside one it becomes a denial valve you can keep turning as long as the resource keeps flowing.