Nesting Dragon + Bladewing's Thrall + Ashaya, Soul of the Wild + Altar of Dementia

Nesting Dragon

Bladewing's Thrall

Ashaya, Soul of the Wild

Altar of Dementia

How it works

1. Cast Bladewing's Thrall by paying 2.
2. When Bladewing's Thrall enters, Nesting Dragon triggers, as Bladewing's Thrall is a land due to Ashaya.
3. Holding priority, activate Altar of Dementia by sacrificing Bladewing's Thrall.
4. Resolve the Nesting Dragon trigger, creating a 0/2 Dragon Egg creature token.
5. When the Dragon Egg enters, Bladewing's Thrall triggers, returning itself from your graveyard to the battlefield.
6. Repeat from step 2.

This clever loop transforms your graveyard into an endless engine of rebirth and destruction. Ashaya, Soul of the Wild does the heavy lifting by turning all your nontoken creatures into lands, meaning the mere entry of Bladewing's Thrall instantly satisfies Nesting Dragon's landfall condition. As the Thrall enters, you sacrifice it to Altar of Dementia to mill an opponent, and the resulting Dragon Egg token arrival coaxes Bladewing's Thrall right back out of your graveyard to start the cycle anew.