Cast Goblin Recruiter by paying {1}{R}.
Search your library for Mogg Fanatic, Kiki-Jiki, Torch Courier, and Conspicuous Snoop, and put them on top of your library in that order.
Draw a card by any method.
Cast Conspicuous Snoop by paying {R}{R}.
Cast Torch Courier from the top of your library by paying {R}.
Activate Torch Courier by sacrificing it, giving Conspicuous Snoop haste until end of turn.
Activate Conspicuous Snoop using the ability gained due to Kiki-Jiki being on the top of your library by tapping Conspicuous Snoop, creating a token copy of itself.
Repeat step 7 for infinite tapped token copies of Conspicuous Snoop.
Activate your untapped token copy of Conspicuous Snoop by tapping it, creating a token copy of Goblin Recruiter.
The Goblin Recruiter token enters the battlefield, searching your library for Mogg Fanatic and putting it on top of your library.
Sacrifice an arbitrarily large number of Conspicuous Snoop tokens using the ability gained due to Mogg Fanatic being on top of your library for an arbitrarily large amount of damage.

Infinite damage

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Goblin Recruiter

Conspicuous Snoop

Kiki-Jiki, Mirror Breaker

Torch Courier

Mogg Fanatic

Activate Kiki-Jiki by tapping it, creating a token copy of Mogg Fanatic with haste.
Activate the Mogg Fanatic token by sacrificing it.
When Mogg Fanatic dies, Kiki-Jiki's ability from Thornbite Staff triggers, untapping Kiki-Jiki.
Resolve the Mogg Fanatic ability, dealing 1 damage to any target.
Repeat.

Thornbite Staff

Sacrifice Mogg Fanatic to deal 1 damage to any target.
Koll and Deathrender trigger.
Stack the triggers so that Koll's trigger resoves first.
Koll returns Mogg Fanatic to your hand.
Deathrender's trigger resolves, putting Mogg Fanatic from your hand onto the battlefield, and attaching Deathrender to it.
Repeat.

Koll, the Forgemaster

Deathrender

Activate Mogg Fanatic by sacrificing it.
When Mogg Fanatic dies, Luminous Broodmoth triggers, returning Mogg Fanatic from your graveyard to the battlefield without a flying counter on it due to Solemnity.
Resolve the Mogg Fanatic ability.
Repeat.

Solemnity

Luminous Broodmoth

Cast Doomsday by paying {B}{B}{B}, searching your library and graveyard for Torch Courier, Kiki-Jiki, Mogg Fanatic, Brazen Buccaneers and Conspicuous Snoop, exiling all other cards from your graveyard and library, and then placing the remaining cards on top of your library in the order previously listed and losing half your life, rounded up.
Activate Grenzo by paying {2}, putting Conspicuous Snoop into your graveyard and then onto the battlefield.
Cast Torch Courier from the top of your library by paying {R}.
Activate Torch Courier by sacrificing it, giving Conspicuous Snoop haste until end of turn.
Activate Conspicuous Snoop using Kiki-Jiki's ability by tapping it, creating a token copy of Conspicuous Snoop with haste.
Repeat step 5 with the new Conspicuous Snoop token an arbitrarily large amount of times.
Activate Grenzo by paying {2}, putting Brazen Buccaneers into your graveyard and then onto the battlefield.
Brazen Buccaneers enters the battlefield, revealing Kiki-Jiki, putting a +1/+1 counter on Brazen Buccaneers and putting Kiki-Jiki into your graveyard.
Activate a Conspicuous Snoop using Mogg Fanatic's ability by sacrificing it, dealing 1 damage to any target.
Repeat from step 9.

Each opponent loses the game

Infinite creature tokens with haste

Doomsday

Grenzo, Dungeon Warden

Brazen Buccaneers

Activate Mogg Fanatic by sacrificing it.
When Mogg Fanatic dies, Mortuary and Vengeful Bloodwitch trigger.
Resolve the Mortuary trigger, putting Mogg Fanatic from your graveyard onto the top of your library.
Resolve the Vengeful Bloodwitch trigger, causing you to gain 1 life and target opponent to lose 1 life.
Resolve the Mogg Fanatic ability.
Cast Mogg Fanatic from the top of your library by paying 1 life.
Repeat.

Infinite lifegain triggers

Infinite storm count

Infinite lifeloss

Mortuary

Vengeful Bloodwitch

Bolas's Citadel

Activate Mogg Fanatic by sacrificing it.
When Mogg Fanatic dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Vizier of Remedies.
Resolve the Mogg Fanatic ability.
Repeat.

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

Vizier of Remedies

Activate Mogg Fanatic by sacrificing it.
When Mogg Fanatic dies, Yedora triggers, returning Mogg Fanatic from your graveyard to the battlefield face-down as a Forest land.
When Mogg Fanatic enters the battlefield, Zimone triggers.
Holding priority, activate Mogg Fanatic by tapping it, adding {G}.
Resolve the Zimone trigger, turning Mogg Fanatic face-up.
Resolve the Mogg Fanatic ability from step 1.
Repeat.

Infinite green mana

Infinite landfall triggers

Zimone, Mystery Unraveler

Yedora, Grave Gardener

Activate Mogg Fanatic by sacrificing it.
When Mogg Fanatic dies, Ratadrabik triggers, creating a token copy of Mogg Fanatic that is a 2/2 legendary Zombie in addition to its other types.
Resolve the Mogg Fanatic ability.
Repeat using the Mogg Fanatic token

Ratadrabik of Urborg

Leyline of Singularity

Activate a basic Swamp by tapping it, adding {B}.
Activate Kenrith's fifth ability by paying {B} due to Agatha, returning Mogg Fanatic from your graveyard to the battlefield.
Activate Earthcraft by tapping Mogg Fanatic, untapping the basic Swamp.
Activate Mogg Fanatic by sacrificing it.
Repeat.

Combos with "Mogg Fanatic"