Cast Clash of the Eikons by paying {G}, removing a lore counter from Esper Terra and then putting a lore counter on Esper Terra.
Esper Terra's first, second or third chapter ability triggers, creating a token copy of Summon: Esper Valigarmanda, and then choosing to put a lore counter on the token.
The Summon: Esper Valigarmanda token's first and second chapter abilities trigger.
Resolve the first trigger, exiling Clash of the Eikons from your graveyard and an instant or sorcery from each opponent's graveyard.
Resolve the second trigger, adding {R}{R} and causing you to pay {1} to cast Clash of the Eikons from exile.
Resolve Clash of the Eikons, removing a lore counter from Esper Terra and then putting a lore counter on Esper Terra.
Repeat from step 2.

Cast all instants and sorceries from opponents' graveyards infinite times

Infinite creature ETB

Infinite creature tokens with haste

Infinite magecraft triggers

Infinite red mana

Infinite storm count

Terra, Magical Adept // Esper Terra

Summon: Esper Valigarmanda

Clash of the Eikons

Cast Replenish by paying {3}{W}, returning Summon: Esper Valigarmanda and the read-ahead Saga from your graveyard to the battlefield. Choose to have the read-ahead Saga enter with enough lore counters on it to trigger its final chapter ability.
Summon: Esper Valigarmanda's first chapter ability and each chapter ability from the read-ahead Saga trigger.
Resolve the Summon: Esper Valigarmanda trigger, exiling Replenish from your graveyard.
Resolve each trigger from the read-ahead Saga, and put it into your graveyard when you resolve its final chapter ability.
Resourceful Defense triggers, putting a number of lore counters on Summon: Esper Valigarmanda equal to the number of lore counters that were on the read-ahead Saga, triggering Summon: Esper Valigarmanda's second, third and fourth chapter abilities.
Resolve the second and third chapter triggers, adding {R}{R} for each lore counter on Summon: Esper Valigarmanda.
Resolve the fourth chapter trigger, adding {R} for each lore counter on Summon: Esper Valigarmanda and causing you to pay {4} to cast Replenish from exile, returning Summon: Esper Valigarmanda and the read-ahead Saga from your graveyard to the battlefield. Choose to have the read-ahead Saga enter with enough lore counters on it to trigger its final chapter ability.
Repeat from step 2.

Infinite creature LTB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite recursion of enchantment cards in your graveyard

Infinite casts of instant and sorcery cards in opponents' graveyards

Saga with Read Ahead

Replenish

Resourceful Defense

At the beginning of your precombat main phase, Summon: Esper Valigarmanda triggers, putting a lore counter on it and triggering its fourth chapter ability.
Holding priority, cast Clockspinning with buyback by paying {1}, removing a lore counter from Summon: Esper Valigarmanda and returning Clockspinning to your hand.
Resolve the Summon: Esper Valigarmanda ability, adding {R}{R}{R}.
Cast Clockspinning with buyback by paying {1}, putting a lore counter on Summon: Esper Valigarmanda and returning Clockspinning to your hand.
Summon: Esper Valigarmanda's fourth chapter ability triggers.
Repeat from step 2.

Combos with "Summon: Esper Valigarmanda"