An idea that may be interesting for kassadin to some of you.

So here it is. Kassadin's passive blocks 15% of the magic damage taken+gives him the ability to walk through units. What if that became his ultimate's passive? And. To compensate for his magic resistance reduction he can get some magic resist per level stats. Now to the second part of this idea. His E's passive needs 6 stacks to become ready to use. So what if... Those 6 stacks became his passive and for each time he gets them the next spell that he uses becomes empowered? For example: After reaching 6 stacks with his passive Kassadin's next E will , have its slow duration increased to X seconds, and the cone in front of him will be increased to a X degree.

Or: After reaching 6 stacks with his passive Kassadin's next Q can silence the enemy for X seconds. Or: ... Kassadin's next R will have its range increased up to 700 or doubled - a number that can be considered balanced after testing.

And lastly, his W : ... Kassadin's next W doubles the mana he gets back.