Master Chef + Rosie Cotton of South Lane + Crystalline Crawler + Ooze Flux + Primal Vigor

Master Chef

Rosie Cotton of South Lane

Crystalline Crawler

Ooze Flux

Primal Vigor

How it works

1. Activate Ooze Flux by paying 1 and removing a +1/+1 counter from a creature you control, creating two 1/1 Ooze creature tokens, which will enter the battlefield with two +1/+1 counters each due to Primal Vigor and Master Chef.
2. Rosie Cotton of South Lane triggers twice, putting two +1/+1 counters on Crystalline Crawler and any creature you control due to Primal Vigor.
3. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding 1.
4. Repeat.