Yarok, the Desecrated + Barrin, Master Wizard + Myr Battlesphere + Ashnod's Altar

Yarok, the Desecrated

Barrin, Master Wizard

Myr Battlesphere

Ashnod's Altar

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 glittering loop turns the factory floor of Myr Battlesphere into an engine of absolute abundance, fueled by the multiplicative madness of Yarok, the Desecrated. When the Battlesphere drops, Yarok doubles its entrance trigger to churn out a swarm of eight Myr tokens instead of four, providing a ready-made workforce for your sacrifice outlets. You can then feed five of those mechanical minions to Ashnod's Altar for a hefty payout of colorless mana, while Barrin, Master Wizard uses a modest slice of that mana and another sacrificed Myr to bounce the Battlesphere right back to your hand. Resetting the loop allows you to recast the Battlesphere over and over, compounding your artifact tokens and mana reserves into an infinite loop of creation and sacrifice.