Activate Kiki-Jiki by tapping it, creating a token copy of Faceless Butcher.
When the Faceless Butcher token enters the battlefield, it triggers, exiling Kiki-Jiki until Faceless Butcher leaves the battlefield.
Activate Viscera Seer by sacrificing the Faceless Butcher token.
When the Faceless Butcher token dies, it triggers, returning Kiki-Jiki from exile to the battlefield.
Resolve the Viscera Seer ability.
Repeat.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite scry 1

Kiki-Jiki, Mirror Breaker

Viscera Seer

Faceless Butcher

Cast Abdel Adrian from the command zone by paying {4}{W} and command tax, if applicable.
When Abdel Adrian enters the battlefield, it triggers, exiling Faceless Butcher and creating a 1/1 Soldier creature token.
When Faceless Butcher leaves the battlefield, it triggers, returning Restoration Angel from exile to the battlefield.
When Restoration Angel enters the battlefield, it triggers, blinking Abdel Adrian.
Abdel Adrian leaves and re-enters the battlefield, causing Faceless Butcher to return from exile to the battlefield, and triggering both Faceless Butcher and Abdel Adrian's abilities.
Resolve the Faceless Butcher trigger, exiling Restoration Angel until Faceless Butcher leaves the battlefield.
Resolve the Abdel Adrian trigger, exiling Faceless Butcher and creating a 1/1 Soldier creature token.
Repeat from step 3.

Infinite creature tokens

Infinite blinking of nonland permanents you control

Abdel Adrian, Gorion's Ward

Restoration Angel

Cast Abdel Adrian either from your hand or from the command zone by paying {4}{W} and command tax, if applicable.
Abdel Adrian enters the battlefield, exiling Oblivion Ring until Abdel Adrian leaves the battlefield, and creating a 1/1 Soldier creature token.
Oblivion Ring leaves the battlefield, triggering its second ability, returning Faceless Butcher from exile to the battlefield.
Faceless Butcher enters the battlefield, triggering its first ability, exiling Abdel Adrian.
Abdel Adrian leaves the battlefield, returning Oblivion Ring from exile to the battlefield.
Oblivion Ring enters the battlefield, triggering its first ability, exiling Faceless Butcher.
Faceless Butcher leaves the battlefield, triggering its second ability, returning Abdel Adrian from exile to the battlefield.
Repeat from step 2.

Oblivion Ring

Cast Abdel Adrian either from your hand or from the command zone by paying {4}{W} and command tax, if applicable.
Abdel Adrian enters the battlefield, exiling Journey to Nowhere until Abdel Adrian leaves the battlefield, and creating a 1/1 Soldier creature token.
Journey to Nowhere leaves the battlefield, triggering its second ability, returning Faceless Butcher from exile to the battlefield.
Faceless Butcher enters the battlefield, triggering its first ability, exiling Abdel Adrian.
Abdel Adrian leaves the battlefield, returning Journey to Nowhere from exile to the battlefield.
Journey to Nowhere enters the battlefield, triggering its first ability, exiling Faceless Butcher.
Faceless Butcher leaves the battlefield, triggering its second ability, returning Abdel Adrian from exile to the battlefield.
Repeat from step 2.

Journey to Nowhere

Cast Faceless Butcher by paying {2}{B}{B}.
Faceless Butcher enters the battlefield, triggering itself and Dual Nature's first ability.
Resolve the Faceless Butcher trigger, choosing not to exile anything.
Resolve the Dual Nature trigger, creating a token copy of Faceless Butcher.
The token Faceless Butcher enters the battlefield, exiling the nontoken Faceless Butcher.
Faceless Butcher leaves the battlefield, triggering Dual Nature's second ability, exiling the Faceless Butcher token.
The Faceless Butcher token leaves the battlefield, triggering its second ability, returning the nontoken Faceless Butcher from exile to the battlefield.
Repeat from step 2.

Exile any target creatures

Infinite triggers of ETB or LTB of any target creatures

Dual Nature

Cast Sister Hospitaller by paying {4}{W}{B}.
When Sister Hospitaller enters, it triggers, returning Faceless Butcher from your graveyard to the battlefield and causing you to gain life equal to its mana value.
When Faceless Butcher enters, it triggers, exiling Sister Hospitaller.
Activate Viscera Seer by sacrificing Faceless Butcher.
When Faceless Butcher dies, it triggers, returning Sister Hospitaller from exile to the battlefield.
Repeat from step 2.
Resolve all Viscera Seer abilities.

Infinite lifegain triggers

Infinite lifegain

Sister Hospitaller

Cast Metamorphosis Fanatic by paying {4}{B}{B}.
When Metamorphosis Fanatic enters, it triggers, returning Faceless Butcher from your graveyard to the battlefield.
When Faceless Butcher enters, it triggers, exiling Metamorphosis Fanatic.
Activate Altar of Dementia by sacrificing Faceless Butcher.
When Faceless Butcher dies, it triggers, returning Metamorphosis Fanatic from exile to the battlefield.
Repeat from step 2.
Resolve all Altar of Dementia abilities.

Combos with "Faceless Butcher"