Singing Bell Strike

Pacifism keeps a creature from attacking; this version pins it down and then charges rent to release it, which is a meaner kind of answer when the threat is something an opponent has built around. The aura taps the creature on entry for an immediate tempo swing, and the no-untap clause turns that single tap into a standing lockdown. The opponent isn't robbed of the creature outright: it still carries its static abilities, its triggers, and any activated ability that doesn't require tapping. What it loses is the ability to attack, block, or use its own tap ability, until the controller pays a flat to wake it for the turn. That untap clause is the honest part of the design. This is not true removal, so the answer is never fully locked away; a patient opponent with mana to spare can pay the toll and swing. The repeatable price is what makes the card work best against expensive, must-untap threats whose owners can least afford to hold six mana open every turn. The structural ancestor is Claustrophobia, which simply taps and holds with no escape hatch. Bolting on a steep self-untap is what gives this one its texture: it trades a clean prison for a soft one that taxes rather than removes, and the bigger the creature's role on the board, the more that six-mana ransom stings each time it comes due.