Originally Posted by
Goliethlol
If regemming is an issue then I wouldn't say its a necessity, however haste is the better stat to gem for once you get a full, proper, set of pvp gear. The thing about haste is that it essentially raises your skillcap as a mage, because it gives you more globabls. Haste will give you more control over your opponents, and an arena match in general.
As the guy above me said, you have too much spellpen either way, so you can afford to change at least a couple gems. You should aim for around 120 spellpen as a mage, preferable 120-130. Also, I updated the char dev link for a couple enchants that i skipped over.