It's kinda hard to play Kerrigan now. Timing Impaling Blades and Primal Grasp is pretty hard to get the hang of. Especially landing it on a few oponents, if you want to maximize your damage. Also, the Maelstrom seems to do rather low damage and has a small area of effect.

LOVING how you structured this, my compliments! Honestly hadn't expected to find such a sophisticated guide for a game still in beta; never mind one in Blizzard beta! (Improved Blizzard talent, anyone?)

Good guide, has helped me a lot while learning to play Kerrigan. Gotten her to lvl 8 so far using this guide. And I go for Double Strike at lvl 13 as well. Although if there's some trouble staying alive and I can't wait until Teleport at lvl 20, I might consider going for Sprint. It can also be helpful in chasing people down if Ravage is on cooldown.

I choose double strike.

What is your choice on 13 tier now, when Rewind was removed?