Talk:Mercurial Scimitar/@comment-84.109.94.152-20121117125330/@comment-4736786-20121117134412

As all LoL math goes, 100% mspeed boosts refer to your base mspeed being added in a certain (this one 100) percentage. i.e. theoritically speaking a 300-base mspeed champion will gain another 300 mspeed for one second if Mercurial Scimitar's active is used. (600 mspeed)

Too bad there is a diminishing effect on movement-speed after it reaches over 500 or so.. it's worth taking a look into, but yeah, you'll roughly end up with 500-550 mspeed using this theoritically (for one second).

IMO, this is a great item to counteract slows, yet still good as a "i'm-gonna-get-you" item.