Activate Goblin Bombardment by sacrificing a creature.
The creature dies, triggering Norn's Wellspring, causing you to put an oil counter on it and draw a card.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
Repeat.

Infinite card draw

Infinite draw triggers

Near-infinite damage

Near-infinite death triggers

Near-infinite ETB

Near-infinite LTB

Near-infinite sacrifice triggers

Eligeth, Crossroads Augur

The Locust God

Norn's Wellspring

Goblin Bombardment

Activate Altar of Dementia by sacrificing a creature.
The creature dies, triggering Norn's Wellspring, causing you to put an oil counter on it and draw a card.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
Repeat.

Near-infinite mill

Altar of Dementia

Activate Ashnod's Altar by sacrificing a creature, adding {C}{C}.
The creature dies, triggering Norn's Wellspring, causing you to put an oil counter on it and draw a card.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
Repeat.

Near-infinite colorless mana

Ashnod's Altar

Activate Phyrexian Altar by sacrificing a creature, adding one mana of any color.
The creature dies, triggering Norn's Wellspring, causing you to put an oil counter on it and draw a card.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
Repeat.

Near-infinite colored mana

Phyrexian Altar

Combos with "Norn's Wellspring"