Tekuthal, Inquiry Dominus + Magistrate's Scepter + Coretapper + Contagion Clasp

Tekuthal, Inquiry Dominus

Magistrate's Scepter

Coretapper

Contagion Clasp

How it works

1. Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
2. Activate Contagion Clasp by paying 4 and tapping it, proliferating twice, putting two additional charge counters on Magistrate's Scepter.
3. Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
4. Repeat each turn.

This ingenious setup harnesses the explosive scaling power of Tekuthal, Inquiry Dominus to turn a slow artifact-charging engine into an infinite turn loop. Because Tekuthal doubles any instance of proliferation, activating Contagion Clasp doesn't just add one counter—it immediately feeds Magistrate's Scepter three charge counters all at once. Meanwhile, Coretapper acts as an invaluable early accelerator to jump-start the scepter's counter collection before you begin taking endless extra turns.