Together Forever + Ashnod's Altar + Hangarback Walker + Shuri, Wakandan Inventor

Together Forever

Ashnod's Altar

Hangarback Walker

Shuri, Wakandan Inventor

How it works

1. Cast Hangarback Walker by paying 1, causing it to enter the battlefield with a +1/+1 counter on it.
2. Activate Together Forever by paying 1, targeting Hangarback Walker.
3. Activate Ashnod's Altar by sacrificing Hangarback Walker, adding CC.
4. When Hangarback Walker dies, Together Forever triggers, returning Hangarback Walker from your graveyard to your hand.
5. Repeat.

This clever loop centers around Hangarback Walker, which you cast for just one mana to enter with a counter, making it a legal target for Together Forever's activated ability. When you sacrifice Hangarback Walker to Ashnod's Altar for two colorless mana, Together Forever guarantees it bounces right back to your hand instead of staying in the graveyard, generating a steady profit of mana each cycle. Meanwhile, Shuri, Wakandan Inventor hangs back to make your artifact spells cheaper, though the real engine runs entirely on recycling the Walker through the Altar and the enchantment to fuel your entire loop.