My try on a Kassadin rework

Passive: Kassadin takes 15% less magic damage.

Q: Voidorb - Kassadin fires a small line skillshot ability, upon hitting a target or reaching it's maximum distance it explodes dealing damage in a small area. Kassadin may reactive the ability to detonate it early.

Think Nidalee sized spear width and explosion radius similar to normal Karma Q.

W: Voidstab - Kassadin charges his blade and releases a burst of energy in a cone in front of him that deals damage and slows all targets hit. Alternatively, Kassadin can tap the ability to empower his next auto attack to deal bonus damage.

This would be similar to Xerath Q style charge; able to move but slowed down. Either charge the ability for AoE and slow or tap it for a higher damage single target nuke.

E: VOIDBLINK (yes it's on his E) - Kassadin blinks a small distance away dealing magic damage in an area around his destination. Kassadin gains a magic damage absorption shield for each enemy champion hit.

This skill would function on an ammo system, gaining charges faster with each rank.

R: One with the Void - Kassadin harnesses the energy of the Void and gains bonus effects on all of his abilities for a short duration.

Q: Skillshot becomes much wider and deals damage to all targets it passes thru. When the Skillshot reaches it's maximum distance or is activated it explodes in a much larger area.

W: The slow on W Charge is doubled. Tap effect adds a short root and even more damage.

E: Range and ammo recovery rate is doubled.

Kassadin's greatest identity is an antimage. His risk/reward was that he was so weak early but ends up becoming an uncounterable beast late game. The idea with this kit is to make his early game stronger by allowing him to Riftblink pre-6, but also increase his counterplay thru Q becoming a skillshot and limiting his easy CC. Kassadin is able to function well without his ult, but become a terror when he activates it. This also allows for enemy teams to play around Kassadin's ult - see him use it and disengage, and then engage when it is down.

Would you like to play this version of Kassadin? Would you feel able good playing against this version of Kassadin?