Cast Leveler by paying {5}.
Leveler enters the battlefield, exiling your library.
Cast Lokhust Heavy Destroyer by paying {1}{B}{B}{B}.
Lokhust Heavy Destroyer enters the battlefield, triggering itself and Canoptek Spyder.
Resolve the Lokhust Heavy Destroyer trigger, causing each opponent to sacrifice a creature, and you to sacrifice Lokhust Heavy Destroyer.
Resolve the Canoptek Spyder trigger, causing you to return Lokhust Heavy Destroyer from your graveyard to the battlefield.
Repeat from step 4.

Each opponent sacrifices all creatures they control

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Out of the Tombs

Lokhust Heavy Destroyer

Leveler

Canoptek Spyder

Cast Leveler by paying {5}.
Leveler enters the battlefield, exiling your library.
Cast Lokhust Heavy Destroyer by paying {1}{B}{B}{B}.
Lokhust Heavy Destroyer enters the battlefield, causing each opponent to sacrifice a creature, and you to sacrifice Lokhust Heavy Destroyer.
Lokhust Heavy Destroyer dies, triggering Liliana, causing you to return Lokhust Heavy Destroyer from your graveyard to the battlefield.
Repeat from step 4.

Liliana, Dreadhorde General

Cast Leveler by paying {5}.
Leveler enters the battlefield, exiling your library.
Cast Lokhust Heavy Destroyer by paying {1}{B}{B}{B}.
Lokhust Heavy Destroyer enters the battlefield, causing each opponent to sacrifice a creature, and you to sacrifice Lokhust Heavy Destroyer.
Lokhust Heavy Destroyer dies, triggering Fecundity, causing you to return Lokhust Heavy Destroyer from your graveyard to the battlefield.
Repeat from step 4.

Fecundity

Cast Leveler by paying {5}.
Leveler enters the battlefield, exiling your library.
Cast Lokhust Heavy Destroyer by paying {1}{B}{B}{B}.
Lokhust Heavy Destroyer enters the battlefield, causing each opponent to sacrifice a creature, and you to sacrifice Lokhust Heavy Destroyer.
Lokhust Heavy Destroyer dies, triggering Weatherlight Compleated, causing you to put a phyresis counter on Weatherlight Compleated and return Lokhust Heavy Destroyer from your graveyard to the battlefield.
Repeat from step 4.

Combos with "Lokhust Heavy Destroyer"