Put a +1/+1 counter on Basking Broodscale.
Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token.
Activate the Eldrazi Spawn by sacrificing it, adding {C}.
When the Eldrazi Spawn dies, Lord Feng triggers, putting a +1/+1 counter on Basking Broodscale.
Repeat from step 2.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite colorless mana

Infinite +1/+1 counters on a creature

Long Feng, Grand Secretariat

Basking Broodscale

Activate Ashnod's Altar by sacrificing a persist creature that doesn't have a -1/-1 counter on it.
When the creature dies, its persist ability and Long Feng trigger.
Resolve the Long Feng trigger, putting a +1/+1 counter on the other persist creature.
Resolve the persist trigger, returning the creature from your graveyard to the battlefield with a -1/-1 counter on it.
Repeat.

Persist Creature

Ashnod's Altar

Put a +1/+1 counter on Scurry Oak
Scurry Oak triggers, creating a creature token.
Activate Viscera Seer by sacrificing the creature token.
When the creature token dies, Lord Feng triggers, putting a +1/+1 counter on Scurry Oak.
Scurry Oak triggers, creating a creature token.
Resolve the Viscera Seer ability.
Repeat from step 3.

Infinite scry 1

Viscera Seer

Scurry Oak

Activate Ashnod's Altar by sacrificing any other creature you control, adding {C}{C}.
When the creature dies, Long Feng triggers, putting a +1/+1 counter on a creature you control.
Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
Repeat.

Infinite +1/+1 counters

Animation Module

Activate Ghave by paying {1} and removing a +1/+1 counter from a creature you control, creating a creature token.
Activate Ashnod's Altar by sacrificing the creature token, adding {C}{C}.
When the creature token dies, Lord Feng triggers, putting a +1/+1 counter on Ghave.
Repeat.

Ghave, Guru of Spores

Activate Viscera Seer by sacrificing Moss-Pit Skeleton.
When Moss-Pit Skeleton dies, Long Feng and Verdant Succession trigger.
Resolve the Long Feng trigger, putting a +1/+1 counter on a creature you control.
Moss-Pit Skeleton triggers, putting itself from your graveyard onto the top of your library.
Resolve the Verdant Succession trigger, searching your library for Moss-Pit Skeleton and putting it onto the battlefield.
Resolve the Viscera Seer ability.
Repeat.

Combos with "Long Feng, Grand Secretariat"