The Kassadin build for Mid is Rod of Ages and Electrocute. This LoL Kassadin guide for Mid at Platinum+ on 13.23 includes runes, items, skill order, and counters.
Kassadin Counters
Kassadinwinslane against...
Win Rate
Matchup Rate
Aurelion Sol
646 games
1.8%
Galio
185 games
0.5%
Annie
207 games
0.6%
Katarina
1562 games
4.2%
Kassadinloseslane against...
Tristana
571 games
1.5%
Akshan
325 games
0.9%
Yone
1707 games
4.6%
Talon
598 games
1.6%
Zed
920 games
2.5%
Jayce
684 games
1.9%
Yasuo
1293 games
3.5%
Irelia
506 games
1.4%
Naafiri
451 games
1.2%
Qiyana
310 games
0.8%
Pantheon
501 games
Neeko
395 games
1.1%
Lux
776 games
2.1%
Diana
350 games
Orianna
2240 games
6.1%
Vel'Koz
291 games
Vladimir
936 games
Xerath
619 games
1.7%
Syndra
2160 games
5.9%
Twisted Fate
711 games
Ziggs
364 games
1.0%
Taliyah
290 games
Zoe
365 games
Ahri
1463 games
4.0%
Viktor
726 games
2.0%
Fizz
1352 games
3.7%
Vex
634 games
Anivia
388 games
Sylas
2090 games
5.7%
Akali
1777 games
4.8%
LeBlanc
667 games
Swain
233 games
Veigar
1148 games
3.1%
Malzahar
828 games
2.2%
Lissandra
549 games
Azir
979 games
2.7%
Ryze
285 games
Ekko
495 games
1.3%
Cassiopeia
247 games
0.7%