Miss Fortune vs Zeri

Fire Double Up (Q) at a dying minion in front of a champion: if the shot kills the minion, the bounce onto the champion always crits.

Switch targets often: Love Tap (passive) adds damage on each new target, and lowers the cooldown of Strut (W).

Activate Strut (W) to get in position before Bullet Time (R): you instantly gain its max move speed bonus, plus attack speed.

Cast Bullet Time (R) on enemies who are CC'd or bunched up in a chokepoint: it's a channeled cone, and each wave can crit.

Keep minions between you and her: Burst Fire (Q) stops on the first enemy hit, except during Spark Surge (E), when it pierces through them.

Don't fight near a wall against her: if Ultrashock Laser (W) hits it, it becomes an area laser that slows and critically strikes.

If you can engage, go in right after Spark Surge (E): it's her only dash, and each of her hits lowers its cooldown, so don't wait.

During Lightning Crash (R), back off out of her range: each hit she lands on a champion extends the effect and makes her faster.