Sigil Captain + Rosie Cotton of South Lane + Crystalline Crawler + Ooze Flux + Primal Vigor

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 two 1/1 Ooze creature tokens.
2. 2Rosie Cotton of South Lane triggers twice, putting two +1/+1 counters on Crystalline Crawler and any other creature you control due to Primal Vigor.
3. 3When the Oozes enters the battlefield, Sigil Captain triggers twice, putting four +1/+1 counters on each of them due to Primal Vigor.
4. 4Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding .
5. 5Repeat.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite colored mana
• Infinite creature ETB
• Infinite creature tokens