Activate O'aka by tapping it and removing a counter from a nonland permanent, causing you to draw a card.
The Astonishing Ant-Man triggers, putting a counter on it.
Activate Mind Over Matter by discarding a card, untapping O'aka.
Repeat.

Infinite draw triggers

Infinite looting

Infinite self-discard triggers

O'aka, Traveling Merchant

Mind Over Matter

The Astonishing Ant-Man

Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
The Astonishing Ant-Man triggers, putting a +1/+1 counter on it.
Cast Sensei's Divining Top from the top of your library by paying {0} and removing a counter from a creature you control.
Repeat.

Infinite card draw

Near-infinite storm count

Falco Spara, Pactweaver

Sensei's Divining Top

Valeria Richards, Precocious

Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
The Astonishing Ant-Man triggers, putting a +1/+1 counter on it.
Cast Sensei's Divining Top from the top of your library by paying {1} and removing a counter from a creature you control.
Glaring Fleshraker's first ability triggers, creating a 0/1 Eldrazi Spawn creature token.
When the Eldrazi Spawn enters, Glaring Fleshraker's second ability triggers, dealing 1 damage to each opponent.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Repeat.

Near-infinite ETB

Near-infinite LTB

Near-infinite damage

Near-infinite death triggers

Near-infinite sacrifice triggers

Glaring Fleshraker

Draw a card.
The Astonishing Ant-Man triggers, putting a +1/+1 counter on it.
Invisible Woman triggers, creating a 0/4 Wall creature token with defender.
When the Wall enters, Mister Fantastic triggers, causing you to draw a card.
Repeat from step 2.

Near-infinite +1/+1 counters on certain creatures

Near-infinite creature tokens

Mister Fantastic, Reed Richards

Invisible Woman, Sue Storm

Combos with "The Astonishing Ant-Man"