Activate Resourceful Defense by paying {4}{W}, moving all charge counters from Eternity Vessel to Darksteel Reactor.
Darksteel Reactor's second ability triggers, causing you to win the game.

Win the game

Eternity Vessel

Darksteel Reactor

Resourceful Defense

Cast Eternity Vessel by paying {6}.
Eternity Vessel enters the battlefield with a number of charge counters on it equal to your life total.
All Will Be One triggers, dealing damage to target opponent equal to the counters placed this way.
The opponent loses the game due to having zero or less life.

Near-infinite damage to one opponent

Target opponent loses the game

All Will Be One

Cast Eternity Vessel by paying {6}. It will enter with a number of charge counters on it equal to your life total.
Cause Eternity Vessel to leave the battlefield. When it does, Resourceful Defense triggers, putting a number of charge counters on Magistrate's Scepter equal to the number Eternity Vessel had on it.
Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
Repeat step 3 as able each turn.

Lock

Near-infinite turns

Magistrate's Scepter

Cast Eternity Vessel.
Cast Dismantle targeting Eternity Vessel, destroying it and placing an amount of counters on Darksteel Reactor equal to the number of charge counters that were on Eternity Vessel.
Darksteel Reactor triggers, winning you the game.

Dismantle

Use Cyberdrive Awakener to make Eternity Vessel a creature.
Cause Eternity Vessel to leave the battlefield.
The Ozolith triggers, putting a number of charge counters on itself equal to the charge counters that were on Eternity Vessel.
At the beginning of your combat phase, The Ozolith triggers, moving all counters from it onto Darksteel Reactor.
Darksteel Reactor triggers, causing you to win the game.

Cyberdrive Awakener

The Ozolith

Cast Dismantle by paying {2}{R}, destroying Eternity Vessel, and putting a number of charge counters on Dragonspark Reactor equal to the number Eternity Vessel had.
Activate Dragonspark Reactor by paying {4} and sacrificing it, dealing damage equal to the number of charge counters on it to an opponent and up to one target creature.
The opponent loses the game due to having 0 or less life.

Dragonspark Reactor

Cast Masterful Replication by paying {5}{U}, causing each artifact you control to become a copy of Darksteel Reactor until end of turn.
Eternity Vessel's second ability triggers, causing you to win the game.

Masterful Replication

Cast True Polymorph causing Eternity Vessel to become a copy of Darksteel Reactor.
You win the game.

True Polymorph

Activate Saheeli by removing two loyalty counters from it, causing Eternity Vessel to become a copy of Darksteel Reactor until end of turn.
Eternity Vessel's second ability triggers, causing you to win the game.

Saheeli, Sublime Artificer

Activate Resourceful Defense by paying {4}{W}, moving all charge counters from Eternity Vessel onto Twenty-Toed Toad.
Declare Twenty-Toed Toad as an attacker. It triggers, causing you to win the game.

Twenty-Toed Toad

Cast Eternity Vessel by paying {6}. Eternity Vessel enters the battlefield with a number of charge counters on it equal to your life total.
Activate Resourceful Defense by paying {4}{W}, moving all charge counters from Eternity Vessel onto Magistrate's Scepter.
Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
If Magistrate's Scepter has few than three charge counters on it, activate Drafna's first ability by paying {1}{U}, returning Eternity Vessel from the battlefield to your hand.
Repeat from step 3 during your next turn if Magistrate's Scepter has three or more charge counters on it. Otherwise, repeat from step 1.

Infinite turns

Drafna, Founder of Lat-Nam

Cast Fate Trasnfer by paying {1}{U/B}, moving all counters from Eternity Vessel onto Dragonspark Reactor.
Activate Dragonspark Reactor by paying {4} and sacrificing it, dealing damage equal to the number of charge counters on it to an opponent and up to one target creature.
The opponent loses the game due to having 0 or less life.

Fate Transfer

March of the Machines

Cast Eternity Vessel by paying {6}. Eternity Vessel enters the battlefield with a number of charge counters on it equal to your life total.
Activate Resourceful Defense by paying {4}{W}, moving all charge counters from Eternity Vessel onto Magistrate's Scepter.
Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, causing you to take an extra turn after this one.
If Magistrate's Scepter has few than three charge counters on it, activate Meticulous Excavation by paying {2}{W}, returning Eternity Vessel from the battlefield to your hand.
Repeat from step 3 during your next turn if Magistrate's Scepter has three or more charge counters on it. Otherwise, repeat from step 1.

Meticulous Excavation

Activate Karn twice by paying {2}, causing Eternity Vessel and Dragonspark Reactor to become artifact creatures until end of turn.
Cast Fate Trasnfer by paying {1}{U/B}, moving all counters from Eternity Vessel onto Dragonspark Reactor.
Activate Dragonspark Reactor by paying {4} and sacrificing it, dealing damage equal to the number of charge counters on it to an opponent and up to one target creature.
The opponent loses the game due to having 0 or less life.

Combos with "Eternity Vessel"