Medium

The Medium mutation allows players to seek out other players' locations with their mind.

This mutation gives a +1 to Focus. You must have the Clairvoyance mutation before you are able to obtain this mutation.

This is one of the mutations that Empath requires; the total mutations needed are Medium/Blink/Flight and Swollen Brain. Please note that you do not need all three movement mutations to become an Empath. You only need one.

By seeking out a player, you can find out their general location; if your focus is high enough, you can accurately locate where they are. You still have to be careful, however; if the player you are seeking has a high Focus, they will be alerted that someone is seeking them, who is seeking them, or detect where they're being sought from, which can potentially be dangerous. Seek with caution!

Seeking will also give you moderate amounts of stress, while it also has a chance to give brain damage if you are seeking too much, people with tinfoil hats or someone with a high focus.

Finally, Medium allows you to see various colored auras around people's heads when you look at them. The color seems to vary based on karma and perhaps other factors. Black and red tend to indicate griefers, indistinct auras indicate newbies without substantial karma, and white probably indicates a nice player but it is very very rare. What do all the other colors mean? Nobody has any fucking idea.