Activate Ashnod's Altar by sacrificing Dragon's Eye Savants, adding CC.
When Dragon's Eye Savants dies, Missy's first ability triggers, returning Dragon's Eye Savants from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature.
Activate Dragon's Eye Savants's morph ability by revealing a blue card from your hand, turning it face up.
Repeat.
This ingenious loop turns Missy and Ashnod's Altar into a relentless recycling engine for your creatures. By sacrificing Dragon's Eye Savants to the Altar, you generate the colorless mana needed to fuel its own resurrection while triggering Missy's ability to immediately return it to the battlefield as a face-down Cyberman artifact creature. From there, you simply exploit the morph ability native to Dragon's Eye Savants to turn it face up again, resetting the entire sequence and letting you repeat the sacrifice infinitely.