Myr Welder + Timeless Lotus + Umbral Mantle

WUBRG identity

Commander legal

The 3 combo pieces

• Myr Welder
• Timeless Lotus
• Umbral Mantle

How to execute it

1. Activate Myr Welder using Timeless Lotus's ability by tapping it, adding {W}{U}{B}{R}{G}.
2. Activate Myr Welder by paying {3} and untapping it, giving it +2/+2 until end of turn.
3. Repeat.

What the combo produces

• Infinite colored mana
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control
• Infinitely large creature until end of turn