Activate Ashnod's Altar by sacrificing Pia and Kiran Nalaar, adding {C}{C}.
When Pia and Kiran Nalaar dies, Nim Deathmantle triggers, causing you to pay {4} to return Pia and Kiran Nalaar from your graveyard to the battlefield and attach Nim Deathmantle to it.
When Pia and Kiran Nalaar enters, it triggers, creating two creature tokens.
Activate Ashnod's Altar by sacrificing a creature token, adding {C}{C}.
Repeat.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite colorless mana

Infinite creature tokens

Nim Deathmantle

Ashnod's Altar

Pia and Kiran Nalaar

Activate Eldrazi Displacer by paying {2}{C}, blinking Pia and Kiran.
Pia and Kiran enters the battlefield, creating two 1/1 Thopter creature tokens.
Activate Ashnod's Altar by sacrificing the two Thopters, adding {C}{C}{C}{C}.
Repeat.

Infinite blinking of creatures you control except Eldrazi Displacer

Eldrazi Displacer

Activate Eldrazi Displacer by paying {2}{C}, blinking Pia and Kiran.
Pia and Kiran enters the battlefield, creating two 1/1 Thopter creature tokens.
Activate Krark-Clan Ironworks by sacrificing the two Thopters, adding {C}{C}{C}{C}.
Repeat.

Krark-Clan Ironworks

Activate Pia and Kiran by paying {1}{U}, blinking itself.
Pia and Kiran enters the battlefield, triggering itself and Deadeye Navigator's soulbond ability.
Resolve the Pia and Kiran trigger, creating two 1/1 Thopter creature tokens.
Resolve the Deadeye Navigator trigger, repairing it and Pia and Kiran.
Activate Phyrexian Altar by sacrificing the two Thopters, adding {1}{U}.
Repeat.

Deadeye Navigator

Phyrexian Altar

Activate Emiel by paying {3}, blinking Pia and Kiran.
Pia and Kiran enters the battlefield, creating two 1/1 Thopter creature tokens.
Activate Krark-Clan Ironworks by sacrificing the two Thopters, adding {C}{C}{C}{C}.
Repeat.

Infinite blinking

Emiel the Blessed

Activate Emiel by paying {3}, blinking Pia and Kiran.
Pia and Kiran enters the battlefield, creating two 1/1 Thopter creature tokens.
Activate Ashnod's Altar by sacrificing the two Thopters, adding {C}{C}{C}{C}.
Repeat.

Combos with "Pia and Kiran Nalaar"