Havi, the All-Father + Gerrard, Weatherlight Hero + Shilgengar, Sire of Famine

Havi, the All-Father

Gerrard, Weatherlight Hero

Shilgengar, Sire of Famine

How it works

1. Activate Shilgengar 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. Holding priority, activate Shilgengar by sacrificing Havi.
5. When Havi dies, it triggers, returning Gerrard from your graveyard to the battlefield.
6. 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.
7. Resolve the Shilgengar abilities from step 1 and 4.
8. Repeat.