LoL Swain players will find him to be a difficult champ to build out properly. You will notice that his build changes when he is fighting either diversified or homogenous team compositions, indicating you should not choose the same Swain build every single round of League of Legends
The best items to use in your champ's build are: Jak'Sho, il Mutevole, Corazza spirituale, and Scettro di cristallo di Rylai. Those who included these items in their setups had a much better winrate than players who worked towards other Swain builds. Likewise, if you are battling a varied enemy team arrangement, you should strongly consider getting Swain the Precisione, and Determinazione runes. In recent games, he won the largest percentage of his matches when built with these runes.
We set our Swain build recommendations by analyzing 62.479 recently ranked League games with him selected. We only recommend the best winrate Swain builds that were used by ranked gamers enough times for us to propose them. With so many rounds in our data, we are quite confident in our provided builds.