Cast Sengir Autocrat by paying {3}{B}.
Sengir Autocrat enters the battlefield, creating three 0/1 Serf creature tokens.
Activate Phyrexian Altar three times by sacrificing the Serf tokens, adding {2}{B}.
Demon of Dark Schemes triggers three times, causing you to get {E}{E}{E}.
Activate Phyrexian Altar by sacrificing Sengir Autocrat, adding one mana of any color.
Demon of Dark Schemes triggers, causing you to get {E}.
Activate Demon of Dark Schemes by paying {2}{B} and {E}{E}{E}{E}, putting Sengir Autocrat from your graveyard onto the battlefield tapped.
Repeat from step 2.

Infinite colored mana

Infinite death triggers

Infinite energy counters

Infinite creature ETB

Infinite creature LTB

Infinite creature sacrifice triggers

Demon of Dark Schemes

Phyrexian Altar

Sengir Autocrat

Activate Ashnod's Altar by sacrificing Sengir Autocrat, adding {C}{C}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Epitaph Golem by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Ashnod's Altar three times by sacrificing the Serfs, adding six {C}.
Repeat.

Infinite colorless mana

Grenzo, Dungeon Warden

Epitaph Golem

Ashnod's Altar

Activate Ashnod's Altar by sacrificing Sengir Autocrat, adding {C}{C}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Soldevi Digger by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Ashnod's Altar three times by sacrificing the Serfs, adding six {C}.
Repeat.

Soldevi Digger

Activate Phyrexian Altar by sacrificing Sengir Autocrat, adding {1}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Epitaph Golem by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Phyrexian Altar three times by sacrificing the Serfs, adding {3}.
Repeat.

Activate Thermopod's second ability by sacrificing Sengir Autocrat, adding {R}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Epitaph Golem by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Thermopod three times by sacrificing the Serfs, adding {R}{R}{R}.
Repeat.

Thermopod

Activate Phyrexian Altar by sacrificing Sengir Autocrat, adding {1}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Soldevi Digger by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Phyrexian Altar three times by sacrificing the Serfs, adding {3}.
Repeat.

Activate Thermopod's second ability by sacrificing Sengir Autocrat, adding {R}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Soldevi Digger by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Thermopod three times by sacrificing the Serfs, adding {R}{R}{R}.
Repeat.

Activate Thermopod's second ability by sacrificing Sengir Autocrat, adding {R}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Transplant Theorist by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Thermopod three times by sacrificing the Serfs, adding {R}{R}{R}.
Repeat.

Transplant Theorist

Activate Phyrexian Altar by sacrificing Sengir Autocrat, adding {1}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Transplant Theorist by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Phyrexian Altar three times by sacrificing the Serfs, adding {3}.
Repeat.

Activate Ashnod's Altar by sacrificing Sengir Autocrat, adding {C}{C}.
When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens.
Activate Transplant Theorist by paying {2}, putting Sengir Autocrat on the bottom of your library from your graveyard.
Activate Grenzo by paying {2}, putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield.
When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens.
Activate Ashnod's Altar three times by sacrificing the Serfs, adding six {C}.
Repeat.

Combos with "Sengir Autocrat"