Yenna, Redtooth Regent + Angelic Renewal + Ashnod's Altar + Fervor

Yenna, Redtooth Regent

Angelic Renewal

Ashnod's Altar

Fervor

How it works

1. Activate Yenna by paying 2 and tapping it, creating a token copy of Angelic Renewal.
2. Activate Ashnod's Altar by sacrificing Yenna, adding CC.
3. When Yenna dies, both Angelic Renewals trigger.
4. Resolve the first trigger, choosing to sacrifice either Angelic Renewal and return Yenna from your graveyard to the battlefield.
5. Resolve the second trigger, choosing not to pay.
6. Repeat.

This intricate loop relies on Yenna, Redtooth Regent duplicating Angelic Renewal to create an endless cycle of sacrifice and resurrection. Once Ashnod's Altar converts Yenna's death into the mana needed to fund her next activation, her return to the battlefield—hasty and ready thanks to Fervor—is seamlessly caught by the stack of triggered abilities waiting to pluck her right back out of the graveyard. Because Yenna's copied enchantment isn't legendary, you can keep stacking triggers and generating infinite creature sacrifices, death triggers, and leaves-the-battlefield events at your whim.