Sigil Captain + Rosie Cotton of South Lane + Crystalline Crawler + Ooze Flux + Branching Evolution

Prerequisites

• You have at least one +1/+1 counter on a creature you control.

Steps

1. 1Activate Ooze Flux by paying and removing a +1/+1 counter from a creature you control, creating a 1/1 Ooze creature token.
2. 2Rosie Cotton of South Lane triggers, putting two +1/+1 counters on Crystalline Crawler due to Branching Evolution.
3. 3When the Ooze enters the battlefield, Sigil Captain triggers, putting four +1/+1 counters on it due to Branching Evolution.
4. 4Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding .
5. 5Repeat.
6. 6Once you have infinite Oozes with a +1/+1 counter on them, you may remove those counters to create an infinitely large Ooze using Ooze Flux.

Effects

• Infinite creature ETB
• Infinite creature tokens
• Infinitely large creature