Activate Spider-Gwen by paying {2} and tapping it.
Spider-Gwen triggers, causing you to rummage.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
Resolve the Spider-Gwen ability from step 1, dealing 1 damage to any target.
Activate Ashnod's Altar by sacrificing the Insect, adding {C}{C}.
When the Insect dies, Spider-Gwen triggers, untapping it.
Repeat.

Near-infinite damage

Infinite self-discard triggers

Near-infinite ETB

Infinite draw triggers

Near-infinite LTB

Infinite rummaging

Near-infinite death triggers

Near-infinite sacrifice triggers

The Locust God

Spider-Gwen, Free Spirit

Thornbite Staff

Ashnod's Altar

Activate a creature by tapping it, adding at least {1}.
Tap Spider-Gwen using any free method.
Spider-Gwen triggers, causing you to rummage.
Nadir Kraken triggers, causing you to pay {1} to put a +1/+1 counter on it and create a 1/1 Tentacle creature token.
When the Tentacle enters, Intruder Alarm triggers, untapping all creatures.
Repeat.

Near-infinite creature tokens

Near-infinite untap of creatures

Near-infinite +1/+1 counters on a creature

Cards Allowing a Creature to Tap for Free

Nadir Kraken

Intruder Alarm

Tap Spider-Gwen using any free method.
Spider-Gwen triggers, causing you to discard a card and draw two cards.
Activate Mind Over Matter by discarding a card, untapping Spider-Gwen.
Repeat.

Mind Over Matter

Vnwxt, Verbose Host

Activate Mind Over Matter by discarding a card, tapping Spider-Gwen.
Spider-Gwen triggers, causing you to discard a card and draw four cards.
Activate Mind Over Matter by discarding a card, untapping Spider-Gwen.
Repeat.

Near-infinite card draw

Thought Reflection

Tap Spider-Gwen using any free method.
Spider-Gwen triggers, causing you to rummage.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
When the Insect enters, Intruder Alarm triggers, untapping all creatures.
Repeat.

Near-infinite creature tokens with haste

Combos with "Spider-Gwen, Free Spirit"