Empowered Autogenerator has at least two charge counters on it.
({G} magic symbol) , ({W} magic symbol) or.
Mana Needed
({U} magic symbol) available.
Steps
Activate
Empowered Autogenerator by tapping it, putting a charge counter on it and adding ({G} magic symbol) , ({W} magic symbol) or ({U} magic symbol) for each charge counter on it.