Activate Illuminor Szeras by tapping it and sacrificing a nontoken creature with mana value eight or greater, adding at least eight {B}.
The creature dies, triggering Illuminor Szeras, untapping Illuminor Szeras.
Activate Gravewaker by paying {5}{B}{B}, returning the creature with mana value eight or greater from your graveyard to the battlefield.
Repeat.

Infinite black mana

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Illuminor Szeras

Thornbite Staff

Gravewaker

Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
Activate Gravewaker by paying {5}{B}{B}, returning Coretapper from your graveyard to the battlefield tapped.
Repeat each turn.

Infinite turns

Lock

Coretapper

Magistrate's Scepter

At the beginning of your upkeep, Delaying Shield triggers.
Holding priority, if Delaying Shield has any delay counters on it, activate Vampire Hexmage by sacrificing it, removing all delay counters from Delaying Shield.
Resolve the Delaying Shield ability, doing nothing.
If Vampire Hexmage is in your graveyard, activate Gravewaker by paying {5}{B}{B}, returning Vampire Hexmage from your graveyard to your hand.
Repeat.

Prevent all damage that would be dealt to you

Delaying Shield

Vampire Hexmage

Activate Illuminor Szeras by tapping it and sacrificing a nontoken creature with mana value eight or greater, adding at least eight {B}.
Activate Gravewaker by paying {5}{B}{B}, returning the creature with mana value eight or greater from your graveyard to the battlefield.
The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures.
Repeat.

Infinite mana creatures you control can produce

Infinite untap of creatures

Intruder Alarm

Cast Infested Thrinax by paying {3}{B}{G}.
When Infested Thrinax enters the battlefield, it triggers, causing you to create a number of 1/1 Saproling creature tokens when a nontoken creature you control dies.
Activate Phyrexian Altar by sacrificing Infested Thrinax, adding {B}.
When Infested Thrinax dies, it triggers for each time it entered the battlefield this turn, creating a number of 1/1 Saproling creature tokens equal to its power for each trigger.
Activate Phyrexian Altar by sacrificing a Saproling, adding {B}.
Repeat step 5 until you either control no Saprolings, or until you have {5}{B}{B} available, whichever comes first.
Activate Gravewaker by paying {5}{B}{B}, returning Infested Thrinax from your graveyard to the battlefield tapped.
Repeat from step 2.

Infinite colored mana

Infinite creature tokens

Return all creature cards from your graveyard to the battlefield

Infested Thrinax

Phyrexian Altar

Activate Umbral Collar Zealot by sacrificing Ancient Adamantoise.
When Ancient Adamantoise dies, it triggers.
Holding priority, activate Gravewaker by paying {5}{B}{B}, returning Ancient Adamantoise from your graveyard to the battlefield.
Resolve the Ancient Adamantoise trigger, creating ten tapped Treasure tokens.
When the Treasures enter, Amulet of Vigor triggers ten times, untapping the Treasures.
Resolve the Umbral Collar Zealot ability.
Activate seven Treasures by tapping and sacrificing them, adding {5}{B}{B}.
Repeat.

Combos with "Gravewaker"