Incubation Druid + Locust Swarm + Quicksilver Elemental

Mana needed: {U}

GU identity

Commander legal

The 3 combo pieces

• Incubation Druid
• Locust Swarm
• Quicksilver Elemental

What must be in place

Quicksilver Elemental has at least one +1/+1 counter on it.
Quicksilver Elemental does not have summoning sickness.

How to execute it

1. Activate Quicksilver Elemental by paying {U}, targeting Incubation Druid.
2. Activate Quicksilver Elemental using Incubation Druid's second ability by tapping it, adding {G}{G}{G}.
3. Activate Quicksilver Elemental by paying {U}, targeting Locust Swarm.
4. Activate Quicksilver Elemental using Locust Swarm's second ability by paying {G}, untapping it.
5. Repeat from step 2.

What the combo produces

• Infinite colored mana