Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
Thopter token enters the battlefield, triggering Gonti's Aether Heart and Decoction Module trigger.
Resolve the Gonti's Aether Heart's trigger, adding {E}{E}.
Resolve the Decoction Module trigger, adding {E}.
Repeat.

Infinite creature tokens

Infinite creature ETB

Gonti's Aether Heart

Decoction Module

Whirler Virtuoso

Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
When the Thopter enters the battlefield, Guide of Souls triggers, causing you to get {E}{E}{E} and gain 1 life.
Repeat.

Infinite lifegain triggers

Infinite lifegain

Infinite energy counters

Guide of Souls

Izzet Generatorium

Aether Refinery

Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
When the Thopter enters the battlefield, Guide of Souls triggers, causing you to get {E}{E} and gain 1 life.
Sphinx of the Revelation triggers, causing you to get {E}{E}.
Repeat.

Sphinx of the Revelation

Activate Whirler Virtuoso by paying {E}{E}{E}, creating two 1/1 Thopter artifact creature tokens due to Stridehangar Automaton.
When the tokens enter, Gonti's Aether Heart triggers twice, causing you to get {E}{E}{E}{E}.
Repeat.

Stridehangar Automaton

Cast Astral Dragon by paying {6}{U}{U}.
When Astral Dragon enters the battlefield, it and Decoction Module trigger.
Resolve the Decoction Module trigger, causing you to get {E}.
Resolve the Astral Dragon trigger, causing you to create two token copies of Decoction Module that are 3/3 Dragons in addition to their other types.
When the Decoction Module tokens enter the battlefield, each Decoction Module triggers twice, causing you to get six {E}.
Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
When the Thopter enters the battlefield, each Decoction Module triggers, causing you to get {E}{E}{E}.
Repeat from step 6.

Astral Dragon

Cast Replication Technique by paying {4}{U}, targeting Decoction Module.
Replication Technique's demonstrate ability triggers, causing you and an opponent to copy Replication Technique, with your copy targeting Decoction Module.
Resolve all Replication Techniques, causing you to create two token copies of Decoction Module.
Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
When the Thopter enters the battlefield, each Decoction Module triggers, causing you to get {E}{E}{E}.
Repeat from step 4.

Replication Technique

Cast Echo Storm by paying {3}{U}{U}, targeting Decoction Module.
Echo Storm triggers, creating at least one copy of Echo Storm, with one copy targeting Decoction Module.
Resolve all Echo Storms, causing you to create two token copies of Decoction Module.
Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
When the Thopter enters the battlefield, each Decoction Module triggers, causing you to get {E}{E}{E}.
Repeat from step 4.

Combos with "Whirler Virtuoso"