理由
Kassadin is a structural hard counter to Vex because he removes two key levers: your ability to reliably kill him in a short window, and the long-term value of your magic poke. Your kit wants to punish dashes and create clean trades with fear + burst. Kassadin absorbs, naturally mitigates AP pressure, and turns lane into a survival phase until his spikes. Once he hits key levels, you’re the one who must respect—even if you played early well.
レーン戦への影響
In lane you can try to control early waves, but you quickly realize the payoff is lower than versus a standard mage: he’s fine dropping some priority to secure XP. From level 5 he’s already harder to punish cleanly, and as the game goes on, your burst becomes insufficient unless you built a huge lead. Midgame, if he can roam with mobility, he forces you to choose between following (dangerous) or losing map impact.
立ち回り方
Shift win condition: don’t play for solo kill—play for tempo. Key timing: before he becomes ‘untouchable’, take clean resets (crash + recall) and use priority to place river vision. Positioning: keep a distance where you can punish last-hits without getting caught by an all-in. Decision: if Kassadin plays safe, don’t tunnel on breaking him—accelerate elsewhere, roam bot/top off priority, and use fear as a skirmish control tool rather than a 1v1 plan.