Underworld Breach + Malevolent Rumble + Maelstrom Wanderer + Jaheira, Friend of the Forest

Underworld Breach

Malevolent Rumble

Maelstrom Wanderer

Jaheira, Friend of the Forest

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 clever loop centers on Underworld Breach, which grants every card in your graveyard escape so you can continually cast Malevolent Rumble to churn through your library and fill your graveyard back up. To fund this, Malevolent Rumble leaves behind an Eldrazi Spawn token, which Jaheira, Friend of the Forest turns into a mana producer that can be tapped for green or sacrificed for colorless mana. Meanwhile, the presence of Maelstrom Wanderer rounds out the table by giving your entire army haste, though the engine itself is purely fueled by the relentless synergy between the enchantment, the spell, and the token-generating mana source.