Cast Another Round by paying its mana cost, blinking Felidar Guardian.
Felidar Guardian and Preston trigger.
Resolve the Felidar Guardian trigger, blinking another permanent you control.
Resolve the Preston trigger, creating a token copy of Felidar Guardian that is a 0/1 Illusion.
When the Felidar Guardian token enters the battlefield, it triggers, blinking the nontoken Felidar Guardian.
Repeat from step 2.

Infinite LTB

Infinite ETB

Infinite creature tokens

Infinite landfall triggers

Infinite blinking of permanents

Infinite mana lands you control that enter the battlefield untapped can produce

Exile all nonland permanents opponents control

Infinite mana lands you control can produce

Preston, the Vanisher

Felidar Guardian

Another Round

Cast Another Round by paying its mana cost, blinking Abdel Adrian.
Abdel Adrian leaves the battlefield, returning Archaeomancer and all other cards that were exiled with it to the battlefield.
Abdel Adrian and Archaeomancer trigger.
Resolve the Archaeomancer trigger, returning Another Round from your graveyard to your hand.
Holding priority, activate any number of nonland permanents you control by tapping them, adding at least enough mana to cast Another Round.
Resolve the Abdel Adrian trigger, exiling Archaeomancer and the mana-producing permanents until Abdel Adrian leaves the battlefield, and creating a 1/1 Soldier creature token for each permanent exiled this way.
Repeat.

Infinite storm count

Infinite blinking of nonland permanents

Infinite magecraft triggers

Abdel Adrian, Gorion's Ward

Archaeomancer

Cast Another Round by paying its mana cost.
Holding priority, cast Dualcaster Mage by paying its mana cost.
When Dualcaster Mage enters, it triggers, copying Another Round, with the copy targeting Dualcaster Mage.
Resolve the copy of Another Round, blinking Dualcaster Mage.
Repeat from step 3.

Infinite blinking

Dualcaster Mage

Cast Shiko either from your hand or from the command zone by paying {2}{U}{R}{W} plus commander tax, if applicable.
When Shiko enters the battlefield, it triggers, exiling Another Round from your graveyard and casting a copy of it without paying its mana cost.
Thousand-Year Storm triggers, copying the Another Round spell at least once.
Resolve the first copy of Another Round, blinking Shiko.
When Shiko enters the battlefield, it triggers, exiling Pull from Eternity from your graveyard and casting a copy of it without paying its mana cost.
Thousand-Year Storm triggers, copying the Pull from Eternity spell at least twice.
Resolve all copies of Pull from Eternity, returning the original Pull from Eternity and Another Round from exile to your graveyard.
Resolve the second copy of Another Round from step 2, blinking Shiko.
Repeat from step 2.

Shiko, Paragon of the Way

Pull from Eternity

Thousand-Year Storm

Cast Another Round by paying {2}{W}, blinking Abdel Adrian.
Abdel Adrian leaves and re-enters the battlefield, causing all cards exiled with it to be returned to the battlefield. Abdel Adrian and Repository Skaab's exploit ability trigger.
Resolve the Repository Skaab trigger, exploiting another creature and triggering its second ability.
Holding priority, activate any number of permanents by tapping them, adding at least {2}{W}
Resolve the Repository Skaab trigger, returning Another Round from your graveyard to your hand.
Resolve the Abdel Adrian trigger, exiling the mana producing permanent(s) and Repository Skaab and creating that many 1/1 Soldier creature tokens.
Repeat.

Infinite sacrifice triggers

Infinite death triggers

Infinite mana nonland permanents you control that enter the battlefield untapped can produce

Repository Skaab

Cast Time Warp by paying its mana cost, taking an extra turn.
Cast Another Round by paying its mana cost, blinking Scholar of the Ages.
When Scholar of the Ages enters the battlefield, it triggers, returning Time Warp and Another Round from your graveyard to your hand.
Repeat each turn.

Infinite turns

Lock

Scholar of the Ages

Time Warp

Combos with "Another Round"