Myr Welder + Sisay's Ring + Umbral Mantle
C identity
Commander legal
The 3 combo pieces
How to execute it
- Activate Myr Welder using Sisay's Ring's ability by tapping it, adding at least {U}{U}.
- Activate Umbral Mantle by paying {U}, untapping Myr Welder.
- Repeat.
What the combo produces
- Infinite colorless mana
- Infinite mana creatures you control can produce
- Infinite untap of creatures you control
- Infinitely large creature until end of turn