Trazyn the Infinite + Farmstead Gleaner + Empowered Autogenerator

Trazyn the Infinite

Farmstead Gleaner

Empowered Autogenerator

How it works

1. Activate Trazyn using Empowered Autogenerator's ability by tapping it, putting a charge counter on it and adding one mana of any color for each charge counter on it.
2. Activate Trazyn using Farmstead Gleaner's ability by paying 2 and untapping it, putting a +1/+1 counter on Trazyn.
3. Repeat.