Miss Fortune: Press R for LP
It's kinda ridiculous that a marksman that is already loaded with great lane harass and utility has probably the highest damage ult in the game. You should not be able to win a game by pressing R with an ADC. A great Amumu ult, I get. It takes skill and can be game-changing, but a Miss Fortune Ult at level 6 that does 700 damage with no items completely wins lane most of the time with the ult alone, and in teamfights, unless one of the very few champions that can ignore her ult and kill her, it is almost pointless to even try and fight. The ult simply needs to do less damage. It should not be able to carry an entire team by itself, no matter how the MF did in lane.
and
especially) since she becomes a sitting duck when ulting and the enemy frontline will be trying to shove to get to YOUR carry, giving you a good dive chance.