Axe of the elements, what can u get?

[pollozz]

After u get to Montero, there is a guy that u can buy an axe of the elements, he tells u that getting to the 3 obelisk (ice/wind/lightning) will upgrade the weapon. I've noticed that they are not the same bonuses, they change according to the first obelisk that u touch. Anyone knows all the differences?
Thanks in advance for the upcoming answers, great game by the way, i am really happy i invested money on it