Prerequisites
- Duergar Mine-Captain in exile
- Empowered Autogenerator in exile
- Encroaching Mycosynth on the battlefield
- Myr Welder on the battlefield
- Myr Welder does not have summoning sickness
- 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 Duergar Mine-Captain's ability by paying and untapping it, giving attacking creatures +1/+0 until end of turn
- Repeat
Results
- Infinite charge counters on Myr Welder
- Infinite colored mana
- Infinitely powerful attacking creatures until end of turn
Required Cards 4
Duergar Mine-Captain
Creature — Dwarf Soldier
Empowered Autogenerator
Artifact
Encroaching Mycosynth
Artifact
Myr Welder
Artifact Creature — Myr