Draw a card.
Iron Man triggers, putting a +1/+1 counter on Pensive Professor.
Pensive Professor triggers, causing you to draw a card.
Repeat from step 2.

Infinite card draw

Infinite draw triggers

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

Pensive Professor

Iron Man, Armored Avenger

Draw a card.
Iron Man triggers, putting a +1/+1 counter on Mister Fantastic.
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 ETB

Near-infinite creature tokens

Mister Fantastic, Reed Richards

Invisible Woman, Sue Storm

Draw a card.
Iron Man triggers, putting a +1/+1 counter on Fathom Mage.
Fathom Mage triggers, causing you to draw a card.
Repeat from step 2.

Fathom Mage

Draw a card.
Iron Man triggers, putting a +1/+1 counter on a creature an opponent controls.
Generous Patron's second ability triggers, causing you to draw a card.
Repeat from step 2.

Near-infinite +1/+1 counters on a creature an opponent controls

Generous Patron

Draw a card.
Iron Man triggers, putting a +1/+1 counter on Scurry Oak.
Scurry Oak triggers, creating a creature token.
When the creature token enters, Mister Fantastic triggers, causing you to draw a card.
Repeat from step 2.

Scurry Oak

Activate Mindless Automaton by removing two +1/+1 counters from it, causing you to draw two cards.
Iron Man triggers twice, putting two +1/+1 counters on Mindless Automaton
Repeat.

Mindless Automaton

Teferi's Ageless Insight

Activate Mindless Automaton by removing two +1/+1 counters from it, causing you to draw a card.
Iron Man triggers, putting two +1/+1 counters on Mindless Automaton due to Lae'zel
Repeat.

Lae'zel, Vlaakith's Champion

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.
Iron 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.

Near-infinite storm count

Near-infinite artifact ETB

Near-infinite artifact LTB

Falco Spara, Pactweaver

Sensei's Divining Top

Shuri, Wakandan Inventor

If you have six or more cards in hand, activate Mind Over Matter by discarding a card.
Repeat step 1 until you have five or fewer cards in hand.
At the beginning of your end step, The Ten Rings triggers, causing you to draw cards until you have ten cards in your hand.
Iron Man triggers for each card drawn, putting that many +1/+1 counters on Sage of Hours.
Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
Repeat each turn.

Lock

Near-infinite turns

Sage of Hours

The Ten Rings

Mind Over Matter

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.
Iron 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.

Combos with "Iron Man, Armored Avenger"