Cast Deadly Grub by paying {2}{B}.
Deadly Grub enters the battlefield with three time counters and a vigilance counter on it.
Activate Tayam by paying {3} and removing the three time counters from Deadly Grub.
Deadly Grub's vanishing ability triggers, holding priority, activate Phyrexian Altar by sacrificing Deadly Grub, adding {1}.
Deadly Grub dies, triggering itself and Abzan Ascendancy.
Resolve the Deadly Grub trigger, creating a 6/1 Insect creature token.
Resolve the Abzan Ascendancy trigger, creating a 1/1 Spirit creature token.
Activate Phyrexian Altar twice by sacrificing the Insect and Spirit tokens, adding {2}.
Resolve the Deadly Grub trigger from step 4, doing nothing since Deadly Grub is no longer on the battlefield.
Resolve the Tayam ability from step 3, causing you to mill three cards and return Deadly Grub from your graveyard to the battlefield.
Repeat from step 2.

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Infinite self-mill

Tayam, Luminous Enigma

Deadly Grub

Phyrexian Altar

Abzan Ascendancy

Activate Phyrexian Altar by sacrificing Nether Traitor, adding {B}.
When Nether Traitor dies, Abzan Ascendancy triggers, creating a creature token.
Activate Phyrexian Altar by sacrificing the creature token, adding one mana of any color.
When the creature token dies, Nether Traitor triggers, causing you to pay {B} to return Nether Traitor from your graveyard to the battlefield.
Repeat.

Infinite colored mana

Nether Traitor

Activate Phyrexian Altar by sacrificing Oathsworn Vampire, adding {B}.
When Oathsworn Vampire dies, Abzan Ascendancy triggers, creating a creature token.
Activate Phyrexian Altar by sacrificing the creature token, adding {1}.
Cast Oathsworn Vampire from your graveyard by paying {1}{B}.
Repeat.

Infinite storm count

Oathsworn Vampire

Activate Phyrexian Altar by sacrificing Ozox, adding {1}.
When Ozox dies, it and Abzan Ascendancy trigger.
Resolve the Ozox trigger, creating a legendary 2/1 Jumblebones creature token.
Resolve the Abzan Ascendancy trigger, creating a creature token.
Activate Phyrexian Altar twice by sacrificing Jumblebones and the other creature token, adding {1}{B}.
When Jumblebones dies, it triggers, returning Ozox from your graveyard to your hand.
Cast Ozox by paying {2}{B}.
Repeat.

Ozox, the Clattering King

Activate Ashnod's Altar by sacrificing Circle of the Land Druid, adding {C}{C}.
When Circle of the Land Druid dies, its second ability, Abzan Ascendancy and Pitiless Plunderer trigger.
Resolve the Abzan Ascendancy trigger, creating a creature token.
Resolve the Circle of the Land Druid trigger, returning Takenuma from your graveyard to your hand.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Activate Ashnod's Altar by sacrificing the creature token, adding {C}{C}.
When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token.
Activate the Treasures by tapping and sacrificing them, adding {B}{G}.
Activate Takenuma's channel ability by paying at most {3}{B}, returning Circle of the Land Druid from your graveyard to your hand.
Cast Circle of the Land Druid by paying {1}{G}.
When Circle of the Land Druid enters, its first ability triggers, allowing you to mill four cards.
Repeat.

Infinite colorless mana

Infinite self-discard triggers

Circle of the Land Druid

Takenuma, Abandoned Mire

Pitiless Plunderer

Ashnod's Altar

During your upkeep, activate Teardrop Kami by sacrificing it, targeting Hell's Caretaker.
When Teardrop Kami dies, Abzan Ascendancy's second ability triggers, creating a 1/1 Spirit creature token.
Resolve the Teardrop Kami trigger, untapping Hell's Caretaker.
Activate Hell's Caretaker by tapping it and sacrificing the Spirit, returning Teardrop Kami from your graveyard to the battlefield.
Repeat.

Hell's Caretaker

Teardrop Kami

Cast Realm-Scorcher Hellkite by paying {4}{R}{R} and sacrificing an additional artifact, enchantment or token.
When Realm-Scorcher Hellkite enters the battlefield, it triggers, adding {2}{R}{R}.
Activate Ashnod's Altar by sacrificing Realm-Scorcher Hellkite, adding {C}{C}.
When Realm-Scorcher Hellkite dies, Abzan Ascendancy's second ability and Enduring Renewal trigger.
Resolve the Abzan Ascendancy trigger, creating a 1/1 Spirit creature token.
Resolve the Enduring Renewal trigger, returning it to your hand from your graveyard.
Repeat.

Realm-Scorcher Hellkite

Enduring Renewal

Activate Thermopod by sacrificing Squee, adding {R}.
When Squee dies, Abzan Ascendancy triggers, creating a creature token.
Activate Thermopod by sacrificing the creature token, adding {R}.
Cast Squee from your graveyard by paying {R}{R} due to Green Goblin.
Repeat.

Norman Osborn // Green Goblin

Squee, the Immortal

Thermopod

Cast Ebondeath from your graveyard by paying {B}{B} due to Green Goblin.
Activate Phyrexian Altar by sacrificing Ebondeath, adding {B}.
When Ebondeath dies, Abzan Ascendancy triggers, creating a creature token.
Activate Phyrexian Altar by sacrificing the creature token, adding {B}.
Repeat.

Combos with "Abzan Ascendancy"