Activate Terra, Magical Adept by paying 4 and tapping it, causing you to exile it and return it to the battlefield as Esper Terra.
As Esper Terra enters the battlefield, choose to have it enter with four lore counters due to its read-ahead ability.
Esper Terra's fourth chapter ability triggers, causing you to add , and then exile Esper Terra and return it to the battlefield as Terra, Magical Adept.
When Terra, Magical Adept enters the battlefield, it triggers, causing you to mill five cards and put up to one enchantment card milled this way into your hand.
Repeat.
This dazzling loop relies on Barbara Wright: History Teacher to grant read ahead to Esper Terra, allowing the Saga to instantly enter on its fourth chapter and immediately harvest a massive windfall of ten colored mana. That mana handily pays for Terra, Magical Adept's transformation ability, looping the front and back faces endlessly between the battlefield and exile. While Cyclops of Eternal Fury is present merely as part of the total equation, the core engine effortlessly spins itself through infinite creature entries and self-mill without ever needing extra support.