Cast Soul Collector by paying {3}{B}{B}.
When Soul Collector enters the battlefield, Warstorm Surge triggers, causing Soul Collector to deal damage to itself equal to its power.
If an ability from Viscera Seer is waiting to resolve, let it resolve.
Activate Viscera Seer by sacrificing Soul Collector.
When Soul Collector dies, it triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite scry 1

Soul Collector

Viscera Seer

Warstorm Surge

Activate Soul Collector by tapping it, dealing 1 damage to any nontoken creature with toughness equal to one.
The creature dies as a state-based action due to having zero toughness, triggering Soul Collector, returning the creature from a graveyard onto the battlefield under your control.
The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures.
Repeat.

Infinite mana creatures you control can produce

Infinite untap of creatures

Intruder Alarm

Viridian Longbow

Cast Soul Collector by paying {2}{B}{B}.
When Soul Collector enters the battlefield, Warstorm Surge and Marauding Raptor trigger.
Resolve the Warstorm Surge trigger, causing Soul Collector to deal damage to itself equal to its power.
Resolve the Marauding Raptor trigger, dealing 2 damage to Soul Collector.
Soul Collector dies as a state-based action due to having 0 or less toughness.
Soul Collector triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Marauding Raptor

Cast Soul Collector by paying {3}{B}{B}.
When Soul Collector enters the battlefield, Halana triggers, causing you to pay {2} to have Soul Collector deal damage equal to its power to itself.
Activate Ashnod's Altar by sacrificing Soul Collector, adding {C}{C}.
When Soul Collector dies, it triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Halana, Kessig Ranger

Ashnod's Altar

Cast Soul Collector by paying {2}{B}{B}.
When Soul Collector enters the battlefield, Pandemonium and Marauding Raptor trigger.
Resolve the Pandemonium trigger, causing Soul Collector to deal damage to itself equal to its power.
Resolve the Marauding Raptor trigger, dealing 2 damage to Soul Collector.
Soul Collector dies as a state-based action due to having 0 or less toughness.
Soul Collector triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Pandemonium

Cast Soul Collector by paying {3}{B}{B}.
When Soul Collector enters the battlefield, Pandemonium and Aether Flash trigger.
Resolve the Pandemonium trigger, causing Soul Collector to deal damage to itself equal to its power.
Resolve the Aether Flash trigger, dealing 2 damage to Soul Collector.
Soul Collector dies as a state-based action due to having 0 or less toughness.
Soul Collector triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Aether Flash

Cast Soul Collector by paying {3}{B}{B}.
When Soul Collector enters the battlefield, Warstorm Surge and Aether Flash trigger.
Resolve the Warstorm Surge trigger, causing Soul Collector to deal damage to itself equal to its power.
Resolve the Aether Flash trigger, dealing 2 damage to Soul Collector.
Soul Collector dies as a state-based action due to having 0 or less toughness.
Soul Collector triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Combos with "Soul Collector"