Late-swing scaling assassin build: Kassadin does not win because he passively survives to late game, but because he reaches a breakpoint where the map suddenly becomes too small for enemy carries. The build must therefore connect his patience phase to that mobility explosion without buying him an early game he will not truly play.
Three builds, one right answer per draft. The advisor reads the five enemies (and your allies) and names who triggers what — the same rule as the Draft MVP sheet and Ask Nexus.
Best Kassadin build (Mid Lane): Infinity Orb › Rabadon's Deathcap › Stormsurge › Lich Bane › Void Staff, boots Boots of Mana, keystone First Strike. Three variants and when to pick each are below.
Standard build maximizing damage output. Use on neutral matchups or when ahead.
15,100 total cost
Nothing dominates on the other side: the standard build maximizes your damage.
Open this draft in the tool →Defensive build adding survivability. Pick this against high enemy damage or when behind.
15,800 total cost +700gAnti-resist build for tanky enemies. Choose when multiple enemies build armor/magic resist.
15,100 total cost
Scores out of 10: where this champion sits against the whole roster, phase by phase. The strip shows its own power ramp level by level — it does not compare across champions.
Your hardest matchups in this role, and the item from your situational list that answers each one.
Akshan
Zhonya's Hourglass
Physical damage
Jayce
Banshee's Veil
Magic damage
Irelia
Zhonya's Hourglass
Physical damage
Lucian
Zhonya's Hourglass
Physical damage
Same advisor in the Draft (the MVP sheet applies it to your real draft) and in Ask Nexus, which explains the choice. On counters pages: the variant to take against each counter-pick.
Foundational item core, without recent situational additions — kept as a base for understanding the kit. For the up-to-date build, see the section above.
Kassadin converts time into power through scaling.
Amplifying Tome
HP + mana + AP scaling, Kassadin is a late-game carry
Massive mana to spam R Riftwalk in the late game
Max AP for R Riftwalk, which scales off AP
Sorcerer's Shoes
Stasis
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Q Null Sphere interrompt enemies and initiates First Strike safely.
You farm toward level 9 — plant gold accelerates your mana items and thus your power spike.
You play safe until your spike — above 65% HP, the bonus AP is active through your whole passive phase.
Stacked with R, the post-summoner speed makes your engages and exits literally uncatchable.
R (Riftwalk) dash triggers penetration magic on each teleport.
Malignance
Crown of the Shattered Queen
Malignance
Oceanid's Trident
