You have almost 0 information here. And why are you maxing Alcrity on a burst damage squishy champion? Your damage isn't from auto attacking...Its not like your getting the extra damage from lichbane on every attack, only 1 once ever 2 seconds after you cast an ability. so its more like once every 3. You really really should not have maxed points into deadliness. 2% with no crit items is not going to improve your damage output if even you do decide to autoattack

The item build is interesting, i always wanted to see how 2 Archangel's would play out on Kass. High mana and Ability power are the 2 basic necessities on Kassadin. The build is straight forward and effective. Thumbs on that.

Include more information and I'll cast a vote.

Check my guide out if you want