Senna Support is ranked A Tier and has a 45.80% win rate in LoL Ultimate Spellbook Patch 11.24. We've analyzed 47625 Senna Support games to compile our statistical Senna Spellbook Build Guide. For items, our build recommends: Boots of Swiftness, Kraken Slayer, Rapid Firecannon, The Collector, Mortal Reminder, and Black Mist Scythe. For runes, the strongest choice is Inspiration (Primary) with First Strike (Keystone), and Precision (Secondary). The optimal Summoner Spells for this build are Placeholder and Flash. Starting items should include Spectral Sickle, Long Sword, Refillable Potion, and Stealth Ward. Senna's Best Spellbook Support matchups include Taliyah, Twisted Fate, and Cho'Gath. Senna's Best Spellbook Support counters are Kennen, Sejuani, and Alistar.