Color Identity: U, B
Initial Card State
- Myr Welder and Encroaching Mycosynth on the battlefield.
- Empowered Autogenerator and Merrow Grimeblotter in exile (exiled by Myr Welder).
Notable Prerequisites
- Myr Welder does not have summoning sickness.
Mana Needed
(at most) available.
Steps
- Activate Myr Welder using Empowered Autogenerator's ability by tapping it, putting a charge counter on Myr Welder and adding
or 
for each charge counter on Myr Welder. - Activate Myr Welder using Merrow Grimeblotter's ability by paying
and untapping it, giving target creature -2/-0 until end of turn. - Repeat.
Results
- Infinite charge counters on a permanent.
- Infinite colored mana.
Widget
Power and counters calculator
How much mana to start the Myr Welder loop?
Each tap of Myr Welder puts a charge counter on it and makes a mana for each one, and each loop costs . Until a tap makes 2, your own mana covers the difference, one less each loop.
Mana to start
- Each loop costs
- Loops before it pays for itself
- 1
- To start:
- Tap Myr Welder with 1 charge counter:
- Pay :
left - Tap Myr Welder with 2 charge counters:
- Pay : left
- Tap Myr Welder with 3 charge counters:
- Pay : left
- Tap Myr Welder with 4 charge counters:
- Pay : left
- Tap Myr Welder with 5 charge counters:
- Pay :
left - Tap Myr Welder with 6 charge counters:
- Pay :
left - Tap Myr Welder with 7 charge counters:
- Pay :
left - Tap Myr Welder with 8 charge counters:
- Pay : left
