Zed vs Kassadin

Not enough games

Heavy AP damageHigh burstDive threatSplit push

Build vs Kassadin

The champion's reference build, for lack of enough games in this matchup

Starting items

—

Core build

1—

2—

3—

Standard

4CDR

5—

Summoner spells

100%

Anti CC

4vs CC

Other options

—

Inspiration

First Strike

Cash Back

Triple Tonic

Cosmic Insight

Domination

Treasure Hunter

Sudden Impact

Strength by game phase

Passive, spells and ultimate

Void Stone (P)

Kassadin takes reduced magic damage and ignores unit collision.

Cooldowns by spell rank

Level	Q	W	E	R
3	9s	7s	21s	–
6	8s	7s	21s	5s
9	7s	7s	21s	5s
11	7s	7s	21s	3.5s
16	7s	7s	19s	2s
18	7s	7s	17s	2s

Tips to maximize your impact

Combo with two shadows
To kill, cast Death Mark (R), then Living Shadow (W), Shadow Slash (E) and Razor Shuriken (Q): with two shadows, you throw three shurikens.
Dodge with Death Mark
Cast Death Mark (R) just as the enemy casts their decisive spell: during the dash, you're untargetable.
Save the swap back to your shadow
After Death Mark (R), save the recast to get out: you swap places with the shadow left at your starting point, far from the fight.
Save your energy
Save enough energy for a full combo rather than casting your spells for nothing: Living Shadow (W) refunds energy when you and your shadow hit the same target.
Flank to reach the carry
In teamfights, go around the sides and save Death Mark (R) for an isolated target: going in from the front exposes you to the whole team's CC.

How to counter and exploit weaknesses

Trade before he hits 6
Take as many trades as you can before he hits level 6: without Riftwalk (R), he has no way to move quickly, to engage or to escape.
Lean on physical damage
If you deal physical damage, lean on it in trades: Void Stone (passive) and Null Sphere (Q) only reduce magic damage.
Drag it out when he chains R
When he recasts Riftwalk (R) back to back, back off and drag the teamfight out: each quick recast doubles its mana cost, and once he's out of mana he can't blink anymore.
End the game early
Look to end the game early: at max rank, Riftwalk (R) only has a 2-second cooldown, and he blinks almost nonstop.

Patch 16.21.1