Terra, Magical Adept // Esper Terra | Resourceful Defense | Tyvar, Jubilant Brawler (and one other card)

Nonlegendary Saga

Cards

Activate
Terra, Magical Adept by paying ({4} magic symbol) ({R} magic symbol) ({G} magic symbol) and tapping it, exiling it and returning it to the battlefield as
Esper Terra.
When
Esper Terra enters the battlefield, its first chapter ability triggers, copying another Nonlegendary Saga you control and putting two to three lore counters on it.
The Saga tokens first through fourth chapter abilities trigger, as applicable. Resolve all triggers, and sacrifice the Saga token upon resolving the final trigger.
When the Saga token leaves the battlefield,
Resourceful Defense triggers, moving the lore counters from the Saga token onto
Esper Terra.
Esper Terra's second, third and fourth chapter abilities trigger.
Resolve the second and third chapter abilities.
Resolve the fourth chapter ability, adding ({W} magic symbol) ({W} magic symbol) ({U} magic symbol) ({U} magic symbol) ({B} magic symbol) ({B} magic symbol) ({R} magic symbol) ({R} magic symbol) ({G} magic symbol) ({G} magic symbol) and then exiling
Esper Terra and returning it to the battlefield as
Terra, Magical Adept.
Resourceful Defense and
Terra, Magical Adept trigger.
Resolve the
Resourceful Defense trigger, moving all counters from
Esper Terra onto any other permanent.
Resolve the
Terra, Magical Adept trigger, causing you to mill five cards and return up to one enchantment card from among them from your graveyard to your hand.
Repeat.

The chosen Saga must have no more than four chapter abilities. Once you have infinite white mana, you can instead copy any other permanent besides the chosen Saga, and move counters to and from
Esper Terra using
Resourceful Defense's ability.

This combo has been estimated to be Exhibition (Bracket 1+).