Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Marionette Master + Yahenni, Undying Partisan

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

Marionette Master

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing Marionette Master.
2. When Marionette Master dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Marionette Master enters, its fabricate ability triggers, putting a +1/+1 counter on it.
4. Resolve the Yahenni ability.
5. Repeat.

This brilliant loop relies on the transforming synergy of Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, whose reverse side grants every other nontoken creature you control the persist ability. By using Yahenni, Undying Partisan to sacrifice Marionette Master, you trigger a self-sustaining cycle: Marionette Master returns to the battlefield with a -1/-1 counter due to persist, immediately nullified by the +1/+1 counter from its own fabricate ability. Because Marionette Master is an artifact creature and its tokens are artifacts, each sacrifice sends artifacts to the graveyard to continuously drain your opponents' life totals.