Ertha Jo, Frontier Mentor + Clock of Omens + Kragma Butcher + Biotransference

Ertha Jo, Frontier Mentor

Clock of Omens

Kragma Butcher

Biotransference

How it works

1. Activate Clock of Omens by tapping it and Kragma Butcher, targeting Kragma Butcher.
2. Ertha Jo triggers, copying Clock of Omens' ability, targeting Clock of Omens.
3. Resolve both Clock of Omens abilities, untapping it and Kragma Butcher.
4. Kragma Butcher triggers, giving it +2/+0 until end of turn.
5. Repeat.

This ingenious little engine relies on Biotransference to turn your creatures into artifacts, allowing Kragma Butcher to serve as the fuel for Clock of Omens alongside the Clock itself. Every time you tap the Butcher and the Clock to untap the Butcher, Ertha Jo, Frontier Mentor steps in to copy that activation—thanks to the Butcher being targeted—letting you untap the Clock of Omens as well to sustain the loop indefinitely. As you repeat this tapping and untapping cycle, Kragma Butcher’s inspired-like untap ability triggers over and over again, stacking up massive attack power until your creature is infinitely large for the turn.