Jaheira, Friend of the Forest + Spawning Pit + Urabrask the Hidden + Primal Vigor

Jaheira, Friend of the Forest

Spawning Pit

Urabrask the Hidden

Primal Vigor

How it works

1. Activate Spawning Pit's second ability by paying 1 and removing two charge counters from it, creating two creature tokens
2. Activate the tokens by tapping them, adding .
3. Activate Spawning Pit's first ability twice by sacrificing the tokens, putting two charge counters on Spawning Pit.
4. Repeat.

This ingenious loop is anchored by Jaheira, Friend of the Forest, whose static ability turns every token you control into a mana source that taps for green mana. To fuel that engine, Spawning Pit provides a sacrifice outlet that converts creatures back into raw materials, while Primal Vigor doubles every Spawn token generated so you always produce a surplus. Meanwhile, Urabrask the Hidden ensures your newly minted tokens enter the battlefield ready to tap immediately for mana with haste, completing a self-sustaining cycle of creation and sacrifice.