Ghired, Mirror of the Wilds + Atla Palani, Nest Tender + Ashnod's Altar + Kratos, God of War

Ghired, Mirror of the Wilds

Atla Palani, Nest Tender

Ashnod's Altar

Kratos, God of War

How it works

1. Activate Atla by paying 2 and tapping it, creating an 0/1 Egg creature token with defender.
2. Activate Ghired by tapping a nontoken creature you control, creating a copy of the Egg token.
3. Activate Ashnod's Altar by sacrificing an Egg token.
4. When the Egg dies, Atla triggers, causing you to reveal cards from the top of your library until you reveal a creature card and put it onto the battlefield.
5. Repeat from step 2.

Atla Palani, Nest Tender sets the entire engine in motion by churning out 0/1 Egg creature tokens, which can then be sacrificed to Ashnod's Altar to generate colorless mana to help fuel the loop. Meanwhile, Ghired, Mirror of the Wilds utilizes its granted haste to tap a nontoken creature and copy that fresh Egg token, leveraging the abilities given away by Kratos, God of War. Every time an Egg is sacrificed to the altar, Atla Palani's death trigger replaces it by ripping through your library and dumping every single creature card directly onto the battlefield.