Quote Originally Posted by AssertnFailure
It's pretty clear that each heart represents a different element, because when they manifest into their own distinct forms, each form uses a unique element. Also I'm pretty sure it was explicitly stated in that arc, since that was the same arc that introduced elemental affinities.
I read this a bit differently though. Since Kakuzu stole the hearts which would allow him to use all five elements, he was capable of using them. However, he didn't personally master each of them, he found a suitable workaround solution. So, the fact that Pein mastered all five (and perhaps a secret sixth) elements just shows how insanely powerful he is. Also, the scope of this fight so far, and the revelation that Pein isn't even using his specialty is wild.

Jiraiya is definitely pulling out all the stops now. Nobody has yet commented on how funny the hermit summon "scene" was, so I will. The hermit summon "scene" was pretty funny.