Activate Myr Welder using Time Vault's ability by tapping it, gaining an extra turn after this one.
Move to your next turn.
Repeat.

Infinite turns

Lock

Myr Welder

Time Vault

At the beginning of your end step, Voltaic Servant triggers, untapping Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Voltaic Servant

Activate Clock of Omens by tapping it and other artifact you control, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Clock of Omens

Activate Galvanic Key by paying {1}, untapping Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Galvanic Key

Activate Manifold Key by paying {1}, untapping Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Manifold Key

Activate Voltaic Key by paying {1}, untapping Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Voltaic Key

Activate Karn's +2 ability, turning Time Vault into a 1/1 creature until end of turn.
Activate Voltaic Construct for {2}, untapping Time Vault.
Tap Time Vault to take an extra turn after this one.
Repeat for infinite turns.

Voltaic Construct

Karn, the Great Creator

Activate Territory Forge using Time Vault's ability by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Territory Forge

Activate Trazyn the Infinite using Time Vault's activated ability by tapping it, gaining an extra turn after this one.
Move to your next turn.
Repeat.

Trazyn the Infinite

During your cleanup step, discard at least 1 card due to handsize.
Pay {1}{U} for the Telekinetic Bonds trigger, untapping Time Vault.
Tap Time Vault to take an extra turn after this one.
Repeat for infinite turns.

Telekinetic Bonds

Activate Trickster Mage by paying {U}, tapping it, and discard a card, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Trickster Mage

Activate Mind Over Matter by discarding a card, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Mind Over Matter

Activate Filigree Sages by paying {2}{U}, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Filigree Sages

Cast Frenzied Fugue by paying {3}{R}.
Frenzied Fugue enters the battlefield attaching to Time Vault, utapping it.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
At the beginning of your next upkeep, Frenzied Fugue triggers, untapping Time Vault.
Repeat from step 3.

Frenzied Fugue

Activate Tezzeret the Seeker's first loyalty ability by putting a loyalty counter on it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Tezzeret the Seeker

Activate Elder Druid by paying {3}{U} and tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Elder Druid

Activate Captain of the Mists by paying {1}{U} and tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Captain of the Mists

Activate Tidewater Minion by tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Tidewater Minion

Activate Fatestitcher by tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Fatestitcher

Activate Vizier of Tumbling Sands by tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Vizier of Tumbling Sands

Activate Aphetto Alchemist by tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Aphetto Alchemist

Activate Teferi's first loyalty ability by putting two loyalty counters on it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Teferi, Timebender

Activate Ral Zarek's first loyalty ability by putting a loyalty counter on it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Ral Zarek

Activate Unbender Tine by tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Unbender Tine

Activate Kiora's Follower by tapping it, untap Time Vault.
Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Repeat each turn.

Kiora's Follower

Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Activate Nature's Chosen by paying {0}, untapping Time Vault.
Repeat each turn.

Animate Artifact

Nature's Chosen

Activate Time Vault by tapping it, causing you to take an extra turn after this one.
Activate Instill Energy by paying {0}, untapping Time Vault.
Repeat each turn.

Instill Energy

Activate Mairsil using Time Vault's ability by tapping it, gaining an extra turn after this one.
Move to your next turn.
Repeat.

Mairsil, the Pretender

Attack with Derevi.
Derevi triggers upon dealing combat damage, untapping Time Vault.
Tap Time Vault to take an extra turn after this one.
Repeat for infinite turns.

Combos with "Time Vault"