Raucous Entertainer | Crystalline Crawler | Cryptic Trilobite

(and one other card)

Crystalline Crawler and
Cryptic Trilobite in hand.
Raucous Entertainer and
Pemmin's Aura on the battlefield.
Raucous Entertainer does not have summoning sickness.
({6} magic symbol) available plus an additional ({1} magic symbol) if you have no colored mana available.

Cast
Crystalline Crawler by paying ({4} magic symbol) , using at least one colored mana if available.
Cast
Cryptic Trilobite by paying ({2} magic symbol) .
If
Crystalline Crawler has a +1/+1 counter on it, activate its first ability by removing a +1/+1 counter from it, adding ({1} magic symbol) .
Activate
Raucous Entertainer by paying ({1} magic symbol) and tapping it, putting a +1/+1 counter on
Crystalline Crawler,
Cryptic Trilobite and any other creature you control the entered the battlefield this turn.
If you have no ({C} magic symbol) in your mana pool, activate
Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding ({C} magic symbol) ({C} magic symbol) that can only be spent to activate abilities.
Activate
Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding ({U} magic symbol) .
Activate
Pemmin's Aura's first ability by paying ({U} magic symbol) , untapping
Raucous Entertainer.
Repeat from step 4.

Infinite +1/+1 counters on creatures you control that entered the battlefield this turn.
Infinite +1/+1 counters on
Cryptic Trilobite.
Infinite colorless mana that can only be spent to activate abilities.