Underworld Breach + Malevolent Rumble + Akroma's Memorial + Elven Chorus

Underworld Breach

Malevolent Rumble

Akroma's Memorial

Elven Chorus

How it works

1. Cast Malevolent Rumble for its escape cost by paying 1 and exiling three other cards from your graveyard, causing you to mill at least three cards and create a 0/1 Eldrazi Spawn creature token.
2. Activate the Eldrazi Spawn by tapping it, adding .
3. Activate the Eldrazi Spawn by sacrificing it, adding C.
4. Repeat.

This loop turns your graveyard into a self-sustaining engine by leveraging Underworld Breach to repeatedly cast Malevolent Rumble, which fuels its own escape costs while churning out Eldrazi Spawn tokens. Those tokens are immediately empowered by Elven Chorus, letting you tap them for mana before sacrificing them to complete the mana payment for the next iteration. Meanwhile, Akroma's Memorial blankets your entire board in a massive suite of keywords, granting haste so your newly spawned creatures can act immediately alongside the rest of your army.