Welcome to my Build of Kassadin:The Void Walker. This champion is my favorite caster, to me his is better than any caster in the game. He does a lot of damage fast but can also fight up close with his Nether Blade. He is just amazing and does to much damage even without being fed.

For Marks I get magic Penetration Because he does burst damage so if you have magic penetration you can do more damage fast especially with the combination of the Abyssal scepter Which takes away their Magic Resistence.
For Seals i Take cooldown because his skills already have low cooldowns so if you have more than you can spam spells even more to do more damage.
Finally for Glyphs i get Mana Regeneration Because even after you get an archangels staff you use a lot of mana so extra regen can help a lot :)
For Quints i take even more magic penetration for the same reason :)

His Four Skills are-


His Q-Null Sphere
Kassadin fires a void bolt dealing 80 / 130 / 180 / 230 / 280 (+70% of ability power) magic damage and silencing the target for 1 / 1.4 / 1.8 / 2.2 / 2.6 seconds.

His W--Nether Blade
Passive: Kassadin's melee attacks draw energy from the void, restoring 4 / 8 / 12 / 16 / 20 mana each hit. If this effect is triggered from attacking a champion the amount of mana restored is tripled.

Active: Kassadin charges his nether blade, gaining 7 / 15 / 25 / 38 / 50 armor penetration for 5 seconds.

His E--Force Pulse
Kassadin draws energy from spells cast in his vicinity, gaining a charge whenever a spell is cast near him. Upon reaching 6 charges, Kassadin can use Force Pulse to deal 60 / 120 / 180 / 240 / 300 (+80% of ability power) magic damage and slow enemies by 30 / 35 / 40 / 45 / 50% in a cone in front of him for 3 seconds.

His R/Ult--Riftwalk
Kassadin teleports to a nearby location dealing 60 / 90 / 120 (+40% of ability power) magic damage to surrounding enemy units. Additionally, each subsequent Riftwalk in the next 7 seconds costs 100 additional mana and deals 60 / 90 / 120 additional damage.

His Passive-- Weapon Mastery
Kassadin takes 15% reduced magic damage and transforms this damage into bonus attack speed.





I get Null sphere and Force Pulse first because they are what do his damage. Of course getting Rift Walk when you can for Catching ability and also escaping. Then nether blade is also good for the mana regen and Penetration. Then from then you do work. Cant be stopped really without a stun because after you get the Abyssal scepter you do too much burst damage to squishy cares and to tanks you do still a considerable amount of damage.

The major Items you need to get are:


First:-Archangel's Staff
Total Price: 2855
Recipe Price: 1000

45 Ability Power, 1400 Mana, 25 Mana Per 5 Sec. Passive: 3% of your Max Mana is converted to Ability Power. UNIQUE Passive: Each time your Champion uses an Ability their Maximum Mana will increase by 4 Mana. This effect has a 3 second cooldown. Bonus caps at 1000 mana.

Next--Sorcerer's Shoes
Total Price: 1100
Recipe Price: 750

20 Magic Penetration. UNIQUE Passive: Enhanced Movement 2

Next--Abyssal Scepter
Total Price: 2650
Recipe Price: 1050

70 Ability Power, 57 Magic Resist. UNIQUE Aura: Reduces the Magic Resist of nearby enemy champions by 20.

Next:-Lich Bane
Total Price: 3470
Recipe Price: 950

80 Ability Power, 350 Mana, 30 Magic Resist, 7 Movement Speed. UNIQUE Passive: 100% chance when an ability is used that your next physical attack deals an additional 100% of your Ability Power in damage. This effect has a 3 second cooldown.

Next:-Rylai's Crystal Scepter
Total Price: 3105
Recipe Price: 700

80 Ability Power, 500 Health. Passive: Dealing spell damage slows the target's movement speed by 35% for 1.5 seconds (15% for multi-target spells).

If you Feel like youre going to get a lot of kills with the Squishy team you can get some different items. Also if they have a tankier team or more damage also.

For one you could get a:-Mejai's Soulstealer
Total Price: 1235
Recipe Price: 800

20 Ability Power. UNIQUE Passive: Your champion gains 8 ability power per stack, receiving 2 stacks for a kill or 1 stack for an assist. This effect can stack 20 times; you lose a third of your stacks if you die. At 20 stacks, your champion's cooldowns are reduced by 15%.


Also you could get a:- Nashor's Tooth
Total Price: 2885
Recipe Price: 500

50 Attack Speed, 55 Ability Power, 10 Mana Per 5 Sec. UNIQUE Passive: Reduces ability cooldowns by 25%

Get a nashors tooth for some attack speed for your W then he does faster damage.


Also you could get a--Morello's Evil Tome
Total Price: 2350
Recipe Price: 245

75 Ability Power, 12 Mana Per 5 Sec. UNIQUE Passive: 20% cooldown reduction.
Get this for good AP and Great Cooldown Reduction.

And for fun you could get another rabadons :) if you know what im saying.

Basically the only things you can do to hurt people and help your team is to do a lot of burst damage. Slow them and silence them Is all you can really do to help your team in the time of need.