Pandaria Help me spent 83 coins

[Vidaemorte]

Hello you!

83 coins have been refunded and will be removed soon but i have no idea how to spent it.
I am playing a frost mage, most of the time doing pvp. A little bit pve but not much yet.
So, my goal is to get a good bg/arena set.

I allready checked the coin shop for a weapon and amory but the season 15 & 14 stats seem to be the SAME.
The shop Version of the Grievous Gladiator's Battle Staff seems to be even WORSE than to one buyable at the vendor!

I hope you guys can help me out. thx.

[Kemii]

Ignore the tooltip for the staff on the website.

As for the difference in Season 14 to Season 15. There is none since S15 one is just the Honor Version of the S14 one in Prideful Season. They are the same just different colours.

If I was you I'd get the Grevious MH+Offhand and a mount.

[Vidaemorte]

Ok! I am going for the Grievious Gladiator's Mageblade and the Grievious Gladiator's Endgame. But them both are Arena legal right? thx.