Kayn Support is ranked Off Meta Tier and has a 37.54% win rate in LoL Ultimate Spellbook Patch 11.24. We've analyzed 848 Kayn Support games to compile our statistical Kayn Spellbook Build Guide. For items, our build recommends: Plated Steelcaps, Goredrinker, Manamune, The Collector, Youmuu's Ghostblade, and Pauldrons of Whiterock. For runes, the strongest choice is Precision (Primary) with Conqueror (Keystone), and Domination (Secondary). The optimal Summoner Spells for this build are Placeholder and Flash. Starting items should include Pickaxe, Health Potion, and Stealth Ward. Kayn's Best Spellbook Support matchups include Fiddlesticks, Heimerdinger, and Miss Fortune. Kayn's Best Spellbook Support counters are Sona, Alistar, and Ivern.