Kassadin [Rework Concept]
Mobile, anti-mage, mage-assassin: Overall this will be what I will be sticking to for the most part for my ideas. I want Kassadin to be viable, but in a healthy fashion! With an identity such as Kassadin it is SUPER difficult to get right to keep that said mobile identity while having him be healthy for the game. I am going to make Kassadin less of a ranged harrass and more have to commit into melee range for his damage and burst [this said, Force Pulse will be the same spell because I think it is very unique to Kassadin].
Since instant teleports have no counter play to them, Kassadin will gain a small amount of intel of where the Riftwalk went to by creating a path of Void energy between point A and point B which reveals upon the cast time and not after he already jumped via Riftwalk so there is a very small split second window to try to react to Kassadin's movement.
Void Stone (Passive): Kassadin takes 15% reduced magic damage and ignores unit collision.
Null Sphere (Q): Cooldown: 10/9/8/7/6 seconds; Cost: 60/70/80/90/100 Mana; Range: 700 units Kassadin fires an orb of void energy at a target enemy to interrupt channels and reduce the magic damage that target deals by 30% for 1.5 seconds. Kassadin's next basic attack within 3 seconds deals 80/120/160/200/240(+60%AP) magic damage.
Nether Blade (W): Cooldown: 20/18.5/17/15.5/14 seconds; Cost: 30/35/40/45/50 Mana Passive: Kassadin deals (+20%base AD)(+20%AP) as bonus magic damage for his basic attacks.
Active: Kassadin deals (+100%base AD)(+60%AP) as bonus magic damage and gains +75 units range for his next basic attack within the next 5 seconds. If Kassadin strikes a unit with Nether Blade then he gains a charge of Riftwalk which he may hold up to a maximum of 1/2/3/4/5 Riftwalk charges at one time.
Force Pulse (E): Cooldown: 6 seconds; Cost: 80 Mana; Range: 700 units Passive: Kassadin draws energy from spells cast in his vicinity, gaining a charge whenever a spell is cast near him (including his own spells). Upon reaching 6 charges, Kassadin gains the ability to cast Force Pulse.
Active: Kassadin emits a pulse of void energy, dealing 80/105/130/155/180(+70%AP) magic damage and slowing enemies in a 80º cone in front of him by 50/60/70/80/90% for 1 second.
Riftwalk (R): Cooldown: 2.5 seconds; Cost: 100 Mana + 1 Riftwalk Charge; Range: 400/450/500/550 units Kassadin consumes a Riftwalk Charge to instantly teleport to a nearby location and deal 0/60/120/180(+5%max Mana)(+20%AP) magic damage to nearby units upon arrival.
If Kassadin uses consecutive Riftwalks within 6 seconds then he consumes 250 additional Mana and deals 0/120/240/360(+10% max Mana)(+40%AP) magic damage to nearby units upon arrival.
Just leave a little bit of feedback here, Null Sphere no longer is a range poke tool, but the damage went up- in order to deal damage however you must put yourself in melee range within a short time of using Null Sphere and the damage replaces your basic attack entirely and is not bonus magic damage just to make that clear. In order for Kassadin to use this new Null Sphere he now gets Riftwalk with no base damage and short range at level 1 which the range increases with points into Riftwalk and so does getting and increasing the base damage. Now to use your ultimate however you need to use your Nether Blade to gain charges so now there is a trade off where to get really mobile you have to sit in lane spamming Nether Blade in an immobile status and with all that energy stored up Kassadin then becomes a kid hyped up with a truck full sugar in him running all over the rift WAHAHAHAHAHAHAHA! Also, Null Sphere changes instead of making Kassadin tankier against magic damage he makes his target mage weaker, nulling their damage, this has a better counter play aspect since Kassadin can take damage albeit it may be greatly reduced especially with his passive, Void Stone, in mind. Anyways, I want Kassadin to both be this mobile champion, but I also want him to be healthy for the game, this may not necessarily put him in the most ideal spot but it is a step in the right direction.
Hope you enjoy the thoughts! ~ Stacona