Jax vs K'Sante

Start your trades with Counter Strike (E): you dodge autos and take less area damage, and each dodged auto adds damage to the stunning counterattack.

Look for long trades: each consecutive auto increases your attack speed thanks to Relentless Assault (passive).

To escape, place a ward and jump to it with Leap Strike (Q): it can target any unit or ward, allied or enemy.

Activate Grandmaster-at-Arms (R) up close: it only grants armor and magic resist if it hits a champion, and your bonus hits then land every other auto.

After two Ntofo Strikes (Q) hit you, back off or dodge the next one: it becomes a shockwave that stuns and pulls.

When he charges Path Maker (W), get out of its line: nothing stops him while he charges, then he rams straight ahead and his dash knocks back and stuns.

Don't fight with your back to a wall when he has All Out (R): if he knocks you into it, you go through, he hits you again and follows, far from your team.

Focus him during All Out (R): he loses max health, bonus armor and bonus magic resist, but heals off his damage, so don't drag it out.