Amoeboid Changeling + Scuttling Sliver + Timeless Lotus + Trazyn the Infinite

WUBRG identity

Commander legal

The 4 combo pieces

• Amoeboid Changeling
• Scuttling Sliver
• Timeless Lotus
• Trazyn the Infinite

How to execute it

1. Activate Amoeboid Changeling by tapping it, causing Trazyn to become a Sliver until end of turn.
2. Activate Trazyn using Timeless Lotus's ability by tapping it, adding {W}{U}{B}{R}{G}.
3. Activate Trazyn by paying {2}, untapping it.
4. Repeat from step 2.

What the combo produces

• Infinite colored mana
• Infinite untap of some creatures you control