Hey folks, after messing around with Jaina a bit, I've found a build that's a bit ridiculous. This build focuses on always having mana and abilities ready to go, and has no options for staying alive. Ideally, you will want to play this build with a healer nearby at all times. If you get caught out of position, you are pretty much boned, so don't try to do something sneaky, because you'll die. Think of Jaina as a Nova but with even less options for ambushing and escape in this build.

Lingering Chill

+

Arcane Intellect

+

Ice Lance Â

This combo will pretty much guarantee that you are always topped off on mana. This allows you to spam your abilities and push your lane early. Use Cone of Cold first to hit all the minions, then cast Blizzard for a double dip of mana replenishment. SO REFRESHING! The extra cooldown reduction on Frostbolt with Ice Lance also allows you to to spam down heros foolish enough to get anywhere near you, also giving you more free mana.

Northern Exposure

OR Â

Something Else

I think all of the talents here are viable with this build, but I like the Cone of Cold buff the most. It helps out the team when focusing targets, and gives you and your team more damage, allowing you to deal with tanks more effectively.

Icy Veins

+

EVERY THING

Icy Veins is essentially a better version of Rewind specifically for Jaina. It will make your Frostbolt able to go off once a second, and other abilities go off much faster. Keep in mind that you also still get mana back when you hit stuff, and do extra damage as well.

Summon Water Elemental

+

Wintermute   Â

To be honest, this ability is just a distraction and way to enable more free mana in teamfights at the beginning. But at level 20, when you pick up Wintermute you become pretty ridiculous. Bolt of the Storm would typically be the better pick here. but because we are focusing on spamming our abilities, it only makes sense to increase the damage on them by another 50%.