League of Legends Kassadin players will find him to be a difficult champion to build out properly. You will notice that his build is modified when he is up against either well-rounded or specialized team compositions, demonstrating you shouldn't follow the same Kassadin build every round of League of Legends
The best items to incorporate into your champ's build are: Stab der Zeitalter, Rabadons Todeshaube, and Fluch des Lichs. Players who included these items in their builds had a much higher win rate than those who used other builds for Kassadin. Likewise, if you are trying to beat a varied enemy team comp, you should strongly consider getting yourself the Dominanz, and Entschlossenheit runes. In recent games, he won the largest percentage of his games when using these runes.
We came up with our Kassadin build recommendations by examining 124.458 recently ranked League rounds with him selected. We only advise the highest winrate Kassadin builds that were used by ranked LoL players enough times for us to propose them. With so many games in our data, we are confident in our provided builds.