The Necrobloom + Six + Chromatic Sphere + Herald of Kozilek

The Necrobloom

Six

Chromatic Sphere

Herald of Kozilek

How it works

1. Cast Chromatic Sphere from your graveyard by paying 0 and discarding a land card from your hand.
2. Activate Chromatic Sphere by paying 1, tapping and sacrificing it, adding 1 and causing you to mill two cards and return a land card from your graveyard to your hand.
3. Repeat.

This clever engine turns your graveyard into an extension of your hand, anchored by Six granting retrace to all nonland permanent cards in your graveyard so you can recast them at will. To fuel those retrace costs, The Necrobloom steps in to give every land card in your graveyard dredge 2, ensuring a steady stream of land cards flowing right back to your hand whenever you need them. Meanwhile, Herald of Kozilek provides crucial cost reduction to make your colorless spells cheaper to deploy, allowing you to cast Chromatic Sphere for a reduced cost, cycle through it for mana and card draw, and effortlessly repeat the loop.