Barrin, Master Wizard + Myr Battlesphere + Ashnod's Altar + Elesh Norn, Mother of Machines

Barrin, Master Wizard

Myr Battlesphere

Ashnod's Altar

Elesh Norn, Mother of Machines

How it works

1. Cast Myr Battlesphere by paying 7.
2. When Myr Battlesphere enters the battlefield, it triggers twice, creating eight 1/1 Myr artifact creature tokens.
3. Activate Ashnod's Altar five times by sacrificing five Myrs, adding ten C.
4. Activate Barrin by paying 2 and sacrificing a Myr, returning Myr Battlesphere to your hand from the battlefield.
5. Repeat.

This crafty loop centers on doubling the payload of Myr Battlesphere with the help of Elesh Norn, Mother of Machines, which ensures that eight Myr tokens hit the board instead of four every single time the artifact behemoth arrives. From there, Ashnod's Altar converts those spare tokens into a hefty reserve of colorless mana, which readily funds Barrin, Master Wizard's ability to bounce the Myr Battlesphere back to your hand for re-casting. Because the mana generated by sacrificing just five tokens more than covers the costs to recast the Battlesphere and activate Barrin, you are left with an ever-growing surplus of mana, tokens, and resources to overwhelm the table.