My question is why is a light team having elemental defensive advantage in Medusa?
Shouldn't Light and Dark be elementally strong offensively and weak defensively against each other?

All I see is that Medusa dealing way more damage to my Amon than to any of the other light elements.

Also the thing that annoys me often is why does Medusa (and I noticed with Jormun as well) immediately gain an orb just after using an overdrive during rage mode?
That pretty much makes all of their overdrives into a once every 2 turn or 3 turn AoE bashing instead of having the original.