Myr Welder + Prismatic Geoscope + Seedcradle Witch

GW identity

Commander legal

The 3 combo pieces

• Myr Welder
• Prismatic Geoscope
• Seedcradle Witch

What must be in place

There are at least four basic land types among lands you control

How to execute it

1. Activate Myr Welder using Prismatic Geoscope's ability by tapping it, adding at least {2}{G/W}{G/W}
2. Activate Seedcradle Witch by paying {2}{G/W}{G/W}, untapping Myr Welder and giving it +3/+3 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
• Infinitely large creatures you control until end of turn