Cast Illusion of Choice by paying {U}, allowing you to decide how each player votes this turn and causing you to draw a a card.
Cast Plea for Power by paying {3}{U}, choosing all votes to be for time, causing you to take an extra turn after this one.
At the beginning of your end step, Conjurer's Closet triggers, blinking Scholar of the Ages.
When Scholar of the Ages enters the battlefield, it triggers, returning Illusion of Choice and Plea for Power from your graveyard to your hand.
Repeat each turn.

Infinite turns

Lock

Plea for Power

Illusion of Choice

Scholar of the Ages

Conjurer's Closet

Cast Illusion of Choice by paying {U}, causing you to choose how each player votes this turn and drawing a card.
Cast Spark Double by paying {3}{U}, having it enter as a nonlegendary copy of Cirdan the Shipwright.
When Spark Double enters, it and Cloudstone Curio trigger.
Resolve the Cloudstone Curio trigger, returning Cirdan the Shipwright to your hand.
Resolve the Spark Double trigger, having all players vote for any player other than yourself, causing those players to draw cards and you to put Cirdan the Shipwright onto the battlefield.
When Cirdan the Shipwright enters, it and Cloudstone Curio trigger.
Resolve the Cloudstone Curio trigger, returning Spark Double to your hand.
Resolve the Cirdan the Shipwright trigger, having all players vote for any player other than yourself, causing those players to draw cards and putting Spark Double onto the battlefield as a copy of Cirdan the Shipwright.
Repeat from 3.

Infinite LTB

Infinite ETB

Infinite card draw for each opponent

Círdan the Shipwright

Spark Double

Cloudstone Curio

Cast Illusion of Choice by paying {U}, causing you to choose how players vote this turn and drawing a card.
Cast Magister of Worth by paying {4}{W}{B}.
When Magister of Worth enters, it triggers.
Holding priority, activate Ashnod's Altar by sacrificing Magister of Worth and any number of other creatures, adding {2} for each one.
Resolve the Magister of Worth trigger, having each player vote for grace, returning all creatures from graveyards to the battlefield.
Repeat from 3.

Infinite colorless mana

Infinite recursion of creature cards in your graveyard

Magister of Worth

Ashnod's Altar

Combos with "Illusion of Choice"