Tahm Kench vs Yone Top Matchup
Tahm Kench Top wins 51.8% of 2,036 Low Elo games against Yone Top, +1.2 points vs expected, 2-patch window 26.19-26.20.
Researched on LoL patch 26.20. Tips are written to hold at any rank; stats come from Low Elo ranked games up to patch 26.20.
How to play as Tahm Kench
Use Tongue Lash to poke and heal, but avoid chasing while Yone's E is active; look for an engage when he returns or when he is low enough for Devour under your turret.
Avoid fighting while Yone has built Lethal Tempo stacks, and keep Devour available for his all-in instead of taking an extended trade without your ultimate.
Yone's Soul Unbound grants movement speed while his spirit is away and then snaps him back, while Tahm Q heals Tahm on a champion hit and adds a stack of An Acquired Taste.
Sources
These notes come from r/Tahmkenchmains, checked against the champions' abilities.