Havi, the All-Father + Gerrard, Weatherlight Hero + Evereth, Viceroy of Plunder

Havi, the All-Father

Gerrard, Weatherlight Hero

Evereth, Viceroy of Plunder

How it works

1. Activate Evereth by sacrificing Gerrard.
2. When Gerrard dies, it and Havi trigger.
3. Resolve the Havi trigger, returning up to one legendary creature card with mana value 3 or less from your graveyard to the battlefield.
4. Resolve the Evereth ability
5. Activate Evereth by sacrificing Havi.
6. When Havi dies, it triggers, returning Gerrard from your graveyard to the battlefield.
7. Resolve the Gerrard trigger from step 2, failing to exile it as it is no longer in your graveyard and returning Havi from your graveyard to the battlefield.
8. Resolve the Evereth ability
9. Repeat.