Put a +1/+1 counter on Basking Broodscale.
Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token and a Food token.
When the Food token enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on Basking Broodscale.
Repeat from step 2.

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite colorless mana

Infinite lifegain triggers

Infinite lifegain

Infinite creature tokens

Infinite card draw

Infinite draw triggers

Infinite Food tokens

Infinite +1/+1 counters on a creature

Builder's Talent

Basking Broodscale

Peregrin Took

Put a +1/+1 counter on Scurry Oak.
Scurry Oak triggers, creating a 1/1 Squirrel creature token and a Food token.
When the Food token enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on Scurry Oak.
Repeat from step 2.

Scurry Oak

Put a +1/+1 counter on Herd Baloth.
Herd Baloth triggers, creating a 4/4 Beast creature token and a Food token.
When the Food token enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on Herd Baloth.
Repeat from step 2.

Herd Baloth

Put a +1/+1 counter on Lonis.
Lonis's second ability triggers, creating a Clue token.
When the Clue enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on Lonis.
Repeat from step 2.

Infinite artifact tokens

Draw the game

Infinite Clue tokens

Lonis, Genetics Expert

Activate Shilgengar's first ability by sacrificing the persist creature.
When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Resolve the Shilgengar ability, creating a Blood token.
When the Blood token enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on the persist creature.
Repeat.

Infinite Blood tokens

Persist Creature

Shilgengar, Sire of Famine

Activate Ashnod's Altar by sacrificing the persist creature, adding {C}{C}.
When the persist creature dies, its persist ability and Pitiless Plunderer trigger.
Resolve the persist creature trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Resolve the Pitiless Plunderer ability, creating a Treasure token.
When the Treasure token enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on the persist creature.
Repeat.

Infinite artifact ETB

Infinite artifact LTB

Infinite artifact sacrifice triggers

Infinite colored mana

Infinite Treasure tokens

Ashnod's Altar

Pitiless Plunderer

Cast Lotus Petal by paying its mana cost.
When Lotus Petal enters, Builder's Talent's second ability triggers.
Holding priority, activate Lotus Petal by tapping and sacrificing it.
Resolve the Builder's Talent trigger, putting a +1/+1 counter on Evolution Witness.
Evolution Witness triggers, returning Lotus Petal from your graveyard to your hand.
Repeat.

Infinite storm count

Evolution Witness

Lotus Petal

Combos with "Builder's Talent"