Xerath vs Miss Fortune

Charge Arcanopulse (Q) to poke from long range: its range grows with the charge, but you slow down by up to 50% in the meantime.

Slow your target with Eye of Destruction (W) before Arcanopulse (Q): the center of the zone slows the most, and a slowed target dodges poorly.

Land Shocking Orb (E), then center Eye of Destruction (W) on the target: stunned, they can't dodge it, and the center slows the most.

Cast Rite of the Arcane (R) to finish a fleeing target or support a distant fight: your shots reach 5000 range, with bonus damage per champion hit.

Don't stay behind a low-health minion: if Double Up (Q) kills it, the bounce that hits you always crits.

Hit her regularly, even with a small hit: Strut (W) only grants her passive move speed after a few seconds without taking damage.

If you can engage, get on top of her: Miss Fortune has no dash or leap, only the speed from Strut (W).

If you have CC, save it for Bullet Time (R): she channels in place, and interrupting her cancels the remaining waves.