Miss Fortune vs Tristana

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.

Don't stay glued to your minions: when her autos kill them, Explosive Charge (E) damages nearby enemies, and her bomb also explodes in an area.

Back off as soon as Explosive Charge (E) is stuck on you: each of her hits makes it stronger, and a bomb that explodes at max stacks resets Rocket Jump (W).

When she activates Rapid Fire (Q) in a fight, back off until the bonus ends, or stun her if you can: her attack speed spikes for the spell's duration.

In teamfights, when Explosive Charge (E) is on you, spread out from your allies: when it explodes, the bomb also damages anyone near you.