should i do 3 endure and 18 booster or maxed booster and 1 endure?

The built i find good would be 8 Booster, max haste, then get drain.... this is after you get ctrical..

P.S. 18 Booster would be better

Never do 18 Booster. Just get it to level 5 or 6. Booster speed is always the same each level. I wouldnt get it that high.>_>

Never do 18 Booster. Just get it to level 5 or 6. Booster speed is always the same each level. I wouldnt get it that high.>_>
Meh, I agree (if you have some other build), but it can be critical when fighting hard and/or laggy bosses. When recasting, you might lag out or lag long enough to be killed.

But otherwise, if you had to choose between booster and endure, I'd choose Booster, since we have relaxers. Endure isn't all that useful, anyway.