Requires

Emry, Lurker of the Loch must be in the graveyard. Chthonian Nightmare must be on the battlefield. Lion's Eye Diamond must be on the battlefield. Inalla, Archmage Ritualist must be on the battlefield, or in the command zone. Inalla, Archmage Ritualist must be your commander. You have at least . You control at least one additional creature.

Steps

1. Activate Lion's Eye Diamond by tapping and sacrificing it and discarding your hand, adding .
2. Activate Chthonian Nightmare by paying , sacrificing another creature you control, and returning Chthonian Nightmare from the battlefield to your hand, returning Emry from your graveyard to the battlefield.
3. When Emry enters the battlefield, it and Inalla trigger.
4. Resolve the Emry trigger, causing you to mill four cards.
5. Resolve the Inalla trigger, causing you to pay to create a token copy of Emry with haste.
6. Put the nontoken Emry into your graveyard due to the legend rule.
7. When the Emry token enters the battlefield, it triggers, causing you to mill four cards.
8. Activate the Emry token by tapping it, allowing you to cast Lion's Eye Diamond from your graveyard this turn.
9. Cast Lion's Eye Diamond from your graveyard by paying .
10. Cast Chthonian Nightmare from your hand by paying .
11. Activate Lion's Eye Diamond by tapping and sacrificing it and discarding your hand, adding .
12. Activate Chthonian Nightmare by paying , sacrificing the Emry token and returning Chthonian Nightmare from the battlefield to your hand, returning Emry from your graveyard to the battlefield.
13. Repeat from step 3.

Results