Cast Polyraptor by paying {6}{G}{G}.
When Polyraptor enters the battlefield, Marauding Raptor triggers, dealing 2 damage to Polyraptor.
Polyraptor triggers, creating a token copy of itself.
Repeat from step 2 using the new Polyraptor token instead.

Draw the game

Infinite creature tokens

Infinite ETB

Infinitely powerful creature until end of turn

Polyraptor

Marauding Raptor

Cast Sprouting Phytohydra by paying {4}{G}.
When Sprouting Phytohydra enters the battlefield, Marauding Raptor triggers, dealing 2 damage to Sprouting Phytohydra.
Sprouting Phytohydra dies as a state-based action due to having zero or less toughness.
Sprouting Phytohydra triggers, creating a token copy of itself.
Repeat from step 2.

Infinite LTB

Sprouting Phytohydra

Cast Ashcloud Phoenix by paying {1}{R}{R}.
When Ashcloud Phoenix enters the battlefield, Marauding Raptor triggers, dealing 2 damage to it.
Ashcloud Phoenix dies as a state-based action due to having less than 0 toughness.
Ashcloud Phoenix's first ability triggers, returning it from your graveyard to the battlefield face-down.
When Ashcloud Phoenix enters the battlefield face-down, Marauding Raptor triggers, dealing 2 damage to it.
Ashcloud Phoenix dies as a state-based action due to having less than 0 toughness.
Yarus' second ability triggers, returning Ashcloud Phoenix from your graveyard to the battlefield face-down, and then turning it face-up.
Marauding Raptor and Ashcloud Phoenix's second ability trigger.
Resolve the Ashcloud Phoenix trigger, dealing 2 damage to each player.
Resolve the Marauding Raptor trigger, dealing 2 damage to Ashcloud Phoenix.
Repeat from step 3.

Near-infinite damage to all players

Near-infinite death triggers

Near-infinite ETB

Near-infinite LTB

Yarus, Roar of the Old Gods

Ashcloud Phoenix

Activate Kiki-Jiki by tapping it, creating a token copy of a nonlegendary creature whose base toughness is 2 or less.
When the creature token enters the battlefield, Marauding Raptor triggers, dealing 2 damage to the creature token.
The creature token dies as a state-based action due to having 0 or less toughness, triggering Kiki-Jiki, untapping Kiki-Jiki.
Repeat.

Infinite death triggers

Kiki-Jiki, Mirror Breaker

Thornbite Staff

Activate Kiki-Jiki by tapping it, creating a token copy of Cacophodon with haste.
The Cacophodon token enters the battlefield, triggering Marauding Raptor, dealing 2 damage to the Cacophodon token and giving Marauding Raptor +2/+0 until end of turn.
The Cacophodon token triggers, untapping Kiki-Jiki.
Repeat.

Infinite creature tokens with haste

Infinitely powerful Marauding Raptor until end of turn

Cacophodon

Cast Kiki-Jiki, letting him resolve.
Marauding Raptor triggers, dealing 2 damage to Kiki-Jiki.
With the trigger on the stack, tap Kiki-Jiki to create a token copy of Adarkar Valkyrie with haste.
Tap the Adarkar Valkyrie token targeting Kiki-Jiki.
Allow the triggers to resolve.
Kiki-Jiki dies to the 2 damage and is returned to the battlefield by Adarkar Valkyrie.
Repeat.

Infinite sacrifice triggers

Infinite tapped creature tokens with haste

Adarkar Valkyrie

Cast Tatterkite by paying {2}.
When Tatterkite enters the battlefield, Marauding Raptor triggers, dealing 2 damage to Tatterkite.
Tatterkite dies as a state-based action due to having 0 toughness.
Tatterkite's undying ability triggers, returning it to the battlefield from your graveyard with zero +1/+1 counters on it due to its ability.
Repeat from step 2.
NOTE: This combo creates a mandatory infinite loop that will draw the game if it is not interacted with.

Mikaeus, the Unhallowed

Tatterkite

Cast Soul Collector by paying {2}{B}{B}.
When Soul Collector enters the battlefield, Warstorm Surge and Marauding Raptor trigger.
Resolve the Warstorm Surge trigger, causing Soul Collector to deal damage to itself equal to its power.
Resolve the Marauding Raptor trigger, dealing 2 damage to Soul Collector.
Soul Collector dies as a state-based action due to having 0 or less toughness.
Soul Collector triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Soul Collector

Warstorm Surge

Cast Soul Collector by paying {2}{B}{B}.
When Soul Collector enters the battlefield, Pandemonium and Marauding Raptor trigger.
Resolve the Pandemonium trigger, causing Soul Collector to deal damage to itself equal to its power.
Resolve the Marauding Raptor trigger, dealing 2 damage to Soul Collector.
Soul Collector dies as a state-based action due to having 0 or less toughness.
Soul Collector triggers, returning itself from your graveyard to the battlefield.
Repeat from step 2.

Pandemonium

Play Dryad Arbor.
When Dryad Arbor enters, Tourach's Chant and Marauding Raptor trigger.
Resolve the Tourach's Chant trigger, putting a -1/-1 counter on Dryad Arbor.
Dryad Arbor dies as a state-based action due to having 0 toughness, triggering its undying ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When Dryad Arbor enters, Tourach's Chant and Marauding Raptor trigger.
Resolve the Tourach's Chant trigger, putting a -1/-1 counter on Dryad Arbor.
Resolve the Marauding Raptor trigger, dealing damage to Dryad Arbor.
Repeat from step 4.

Infinite landfall triggers

Tourach's Chant

Dryad Arbor

Cast Eternal Scourge either from your hand or from exile by paying {2}.
When Eternal Scourge enters the battlefield, Marauding Raptor triggers, dealing 2 damage to Eternal Scourge.
Activate Ashnod's Altar by sacrificing Eternal Scourge, adding {C}{C}.
When Eternal Scourge dies, Unscythe triggers, exiling Eternal Scourge and creating a 2/2 Zombie creature token.
When the Zombie enters the battlefield, Marauding Raptor triggers.
Holding priority, activate Ashnod's Altar by sacrificing the Zombie, adding {C}{C}.
When the Zombie dies, Unscythe triggers, failing to exile the Zombie as it no longer exists.
Resolve the Marauding Raptor trigger, doing nothing as the Zombie is no longer on the battlefield.
Repeat.

Infinite colorless mana

Infinite storm count

Eternal Scourge

Ashnod's Altar

Unscythe, Killer of Kings

Activate Ashnod's Altar by sacrificing Cacophodon, adding {C}{C}.
Activate Othelm by paying {2} and tapping it, returning Cacophodon from your graveyard to the battlefield.
Cacophodon enters the battlefield, triggering Marauding Raptor, dealing 2 damage to Cacophodon and giving Marauding Raptor +2/+0 until end of turn.
Cacophodon triggers, untapping Othelm.
Repeat.

Combos with "Marauding Raptor"