Deal 7% more damage to low health champions. Gain AD/AP after kills or assists.
+9% Attack Speed
+6 AD or 10 AP
Comet on Miss Fortune offers fantastic reliable lane poke thanks to the guaranteed slow from [E].
Because MF is a caster AD Carry, the mana sustain here allows you to poke throughout lane with [Q].
Celerity's bonus Movement Speed synergizes well with Miss Fortune's natural Movement Speed from [W]. The secondary effect of Celerity also allows MF to gain a considerable amount of bonus AD when her [W] is active.
Gathering Storm's massive late game Attack Damage synergizes incredibly well with MF's high base AD ability kit.
The additional Attack Speed from Alacrity is huge for keeping your damage output up during teamfights after your abilities are on cooldown.
WhyCoup De Grace
Coup De Grace synergizes incredibly well with MF's massively high damage [Q] and [R], putting any squishy target with poor positioning in easy kill range.