Alter Aeon Online Help

Keywords are:  'kxwt combat kprefix prefix'

Syntax:
set kprefix <string>
set kprefix NULL

This command allows you to place a prefix of your own in front of combat
sends that hit you or directly hit your attacker.  This prefix does not
apply to room-based sends involving combat with other players.

See also 'set kxwt' and 'set cprefix' for more client trigger aids.