Sett controls lane pressure early and must force melee trades to deny Yone's scaling.
This matchup is a control vs scaling fight; Sett aims to punish Yone's low early agency and prevent him from safely using (E) to trade.
Sett should adapt defensively by respecting (E) knockup and (Q) third cast knockup threat to avoid getting caught in unfavorable trades.
Trading pattern
Start trades with autos and (E) to lock Yone near minions, then hit a centered (W) when grit is high for max damage and shield.
Punish Yone if he uses (E) from a bad position by following up with (E) pull and grit-backed (W) before he can snap back.
Avoid wasting (W) when Yone can sidestep the center; instead bait out his mobility cooldowns to land it reliably.
Danger windows
Respect (E) knockup and stun extension, especially when he combos with (Q) third cast knockup and (R) displacement.
Sett is vulnerable after missing (E) or spending (W) without hitting the center; avoid overcommitting during these windows.
Beware of Yone's level 3 power spike and his ability to disengage with (E); do not chase recklessly without grit or (R) ready.
Early game
Use early levels to force close-range trades with autos and (E) pulls to build grit and pressure Yone before he hits level 3.
Keep the wave close to Sett's side to threaten (E) stun angles and deny Yone safe use of his (E) for trades.
Avoid extended trades before level 3 when Yone unlocks his combo, but capitalize on his vulnerability when (E) is on cooldown or poorly positioned.
Power spikes
Sett's level 6 (R) allows forced brawls and repositioning; use it to slam Yone after he commits to a trade or to isolate him from minions.
Sett's first bruiser item spike increases durability and trade reliability; pressure the wave to force Yone into risky (E) trades.
Respect Yone's level 3 unlock of (Q)-(W)-(E) combo and his first attack speed item spike by playing more cautiously and avoiding trades without grit or (E) ready.
Win conditions
Win lane by forcing melee trades with (E) pulls and grit-backed (W) damage, denying Yone safe use of his (E) combo.
Use level 6 (R) to isolate and disrupt Yone's positioning, turning trades into forced brawls where Sett excels.
Apply side-lane pressure post-level 6 and after first item to force Yone into unfavorable fights or losing farm, snowballing lane control into teamfight impact.
Tip: For Sett vs Yone, read overview, trading pattern, and danger windows first for a fast Top lane check.