Cast Trickery Charm by paying {U}, giving Weftstalker Ardent the Pirate creature type until end of turn.
Cause an artifact to enter the battlefield under your control.
Weftstalker Ardent triggers, dealing 1 damage to each opponent.
Malcolm triggers, as Weftstalker Ardent is a Pirate due to Trickery Charm, creating a Treasure token for each opponent dealt damage this way.
When the Treasure(s) enter, Weftstalker Ardent triggers that many times.
Resolve the first Weftstalker Ardent trigger, dealing 1 damage to each opponent.
Repeat from step 4.

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Infinite artifact tokens

Infinite colored mana

Infinite damage

Infinite Treasure tokens

Malcolm, Keen-Eyed Navigator

Trickery Charm

Weftstalker Ardent

Cast Sensei's Divining Top by paying {1}.
When Sensei's Divining Top enters the battlefield, Weftstalker Ardent triggers.
Holding priority, 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.
Resolve the Weftstalker Ardent trigger, dealing 1 damage to each opponent.
Ob Nixilis triggers, putting a +1/+1 counter on it, and exiling Sensei's Divining Top from the top of your library with the ability to cast it from exile until your end step.
Cast Sensei's Divining Top from exile by paying {1}.
Prosper triggers, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding {1}.
Repeat from step 2.

Near-infinite damage

Infinite card draw

Infinite draw triggers

Near-infinite storm count

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

Ob Nixilis, Captive Kingpin

Prosper, Tome-Bound

Sensei's Divining Top

Cast Storm Herd by paying {8}{W}{W}, creating a number of 1/1 Pegasus creature tokens equal to your life total.
When the Pegasi enter, Weftstalker Ardent triggers that many times, dealing that much damage to each opponent.

Near-infinite creature ETB

Near-infinite creature tokens

Storm Herd

Draw a card.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
When the Insect enters the battlefield, Weftstalker Ardent triggers, dealing 1 damage to each opponent.
Niv-Mizzet triggers, causing you to draw a card.
Repeat from step 2.

Near-infinite creature tokens with haste

The Locust God

Niv-Mizzet, Visionary

Cast Sensei's Divining Top by paying {1}.
When Sensei's Divining Top enters the battlefield, Weftstalker Ardent triggers.
Holding priority, 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.
Resolve the Weftstalker Ardent trigger, dealing 1 damage to each opponent.
Ob Nixilis triggers, putting a +1/+1 counter on it, and exiling Sensei's Divining Top from the top of your library with the ability to cast it from exile until your end step.
Cast Sensei's Divining Top from exile by paying {1}.
Glaring Fleshraker's first ability triggers, creating a 0/1 Eldrazi Spawn creature token.
When the Eldrazi Spawn enters, Glaring Fleshraker's second ability trigger. dealing 1 damage to each opponent.
Ob Nixilis triggers, putting a +1/+1 counter on it and exiling the top card of your library with the ability to cast it from exile until your end step.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
Repeat from step 2.

Near-infinite artifact ETB

Near-infinite artifact LTB

Near-infinite creature LTB

Near-infinite death triggers

Near-infinite creature sacrifice triggers

Near-infinite card draw

Near-infinite draw triggers

Exile a portion of your library with the ability to play the exiled cards until your end step

Glaring Fleshraker

Activate Duchess by paying {1} and removing a quest counter from a permanent you control, creating a Junk token.
When the Junk enters, Weftstalker Ardent triggers, dealing 1 damage to each opponent.
Quest for Pure Flame triggers, putting a quest counter on it.
Activate the Junk by tapping and sacrificing it.
Crime Novelist triggers, adding {R} and putting a +1/+1 counter on it.
Resolve the Junk's ability, exiling the top card of your library with the ability to play it until end of turn.
Repeat.

Exile your library with the ability to play the exiled cards until end of turn

Infinite +1/+1 counters on a creature

Duchess, Wayward Tavernkeep

Crime Novelist

Quest for Pure Flame

Activate Duchess by paying {1} and removing a quest counter from a permanent you control, creating a Junk token.
When the Junk enters, Weftstalker Ardent triggers, dealing 1 damage to each opponent.
Quest for Pure Flame triggers, putting a quest counter on it.
Activate the Junk by tapping and sacrificing it.
Rose triggers, adding {R}.
Resolve the Junk's ability, exiling the top card of your library with the ability to play it until end of turn.
Repeat.

Rose, Cutthroat Raider

Cause a creature to enter the battlefield under your control.
Weftstalker Ardent triggers, dealing 1 damage to each opponent.
The Red Terror triggers, putting a +1/+1 counter on itself.
Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
When the Servo enters, Weftstalker Ardent triggers.
Holding priority, activate Krark-Clan Ironworks by sacrificing the Servo, adding {C}{C}.
Resolve the Weftstalker Ardent triggers, dealing 1 damage to each opponent.
Repeat from step 3.

Combos with "Weftstalker Ardent"