Kayn ADC is ranked Off Meta Tier and has a 48.29% win rate in LoL Ultimate Spellbook Patch 11.24. We've analyzed 1293 Kayn ADC games to compile our statistical Kayn Spellbook Build Guide. For items, our build recommends: Goredrinker, Ionian Boots of Lucidity, Manamune, Youmuu's Ghostblade, The Collector, and Black Cleaver. 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 Tear of the Goddess, Long Sword, Refillable Potion, and Stealth Ward. Kayn's Best Spellbook ADC matchups include Viktor, Akshan, and Aphelios. Kayn's Best Spellbook ADC counters are Veigar, Vayne, and Tristana.