Backstab (Assassin ability)
If you haven't started fighting yet, you can try to sneak up behind
your enemy and backstab him or her for extra damage. If you are hidden
or camouflaged, this action will reveal you.
Backstab is primarily an assassin ability, and its success is based
mostly on the assassination skill. A successful backstab costs 50 EP,
while a failed attempt costs 20 EP. To prevent abuse (multiple backstabs
in a short amount of time), the victim of a backstab will be protected
from further backstabs for 1 minute.
