You have at least one +1/+1 counter on a creature you control.
({1} magic symbol) ({G} magic symbol) available.
Steps
Activate Ooze Flux by paying ({1} magic symbol) ({G} magic symbol) and removing a +1/+1 counter from a creature you control, creating a 1/1 Ooze creature token, which will enter the battlefield with two +1/+1 counters due to Pir and Master Chef.
Rosie Cotton of South Lane triggers, putting two +1/+1 counters on Crystalline Crawler due to Pir.
Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding ({1} magic symbol) ({G} magic symbol) .
Repeat.
Results
Infinite +1/+1 counters on all Ooze tokens created.