Tryndamere vs Sett

Keep your Fury high before a trade: with Battle Fury (passive), it raises your critical strike chance. Spend it with Bloodlust (Q) when you need health.

Cast Mocking Shout (W) before a trade against a physical damage champion: it lowers their attack damage, and slows enemies who turn their back on you.

Count on Spinning Slash (E) to stick to your target or to escape: each critical strike lowers its cooldown, more so on a champion.

Wait until you're close to death to cast Undying Rage (R): you can't die during the effect, and delaying it pushes the enemy to take risks to kill you.

Split push in a distant lane to draw several enemies: Undying Rage (R) helps you hold them off while your team takes an objective.

Get out of the center of Haymaker (W): it deals true damage there, and the sides only deal physical damage.

Keep your distance once Knuckle Down (Q) is used: he has no dash, and it's this spell that speeds him toward you.

Don't take a big trade unless you can finish it: Haymaker (W) stores part of the damage he takes as Grit, for a stronger shield and punch.

Don't stay grouped behind your tank: The Show Stopper (R) can slam them onto you, and the damage depends on their bonus health.