What Does John Stewart Ally Affect?
Corps Combo on John Stewart says that it reduces the power cost of "power set combo abilities".
What does this mean? I imagine it means our main power sets, but does it include Aquatic Arsenal from the water set via the augment for non-water characters? What about abilities like Hopewave from the Blue Lantern Ring?
I'm thinking of levelling him up to help AA power needs, but I'm not sure if it's worth bothering.