Living Death + Ashnod's Altar + Verdant Eidolon + Archaeomancer

Living Death

Ashnod's Altar

Verdant Eidolon

Archaeomancer

How it works

1. Activate Verdant Eidolon by paying and sacrificing it, adding if you have two or more available, or otherwise.
2. Activate Ashnod's Altar twice by sacrificing Archaeomancer and another nontoken creature, adding CCCC.
3. Cast Living Death by paying 3, causing each player to exile all creature cards in their graveyards, sacrifice all creatures they control, then put all cards exiled this way onto the battlefield.
4. When Archaeomancer enters the battlefield, it triggers, returning Living Death to your hand from your graveyard.
5. Repeat.