Lady Deathknell is a tutor who helps players learn the basics of Combat. She oversees the Combat Academy in Lumbridge.
- Lady Deathknell's name could be a reference to Lady Deathstrike, a Marvel Comics supervillain.
- During the training sessions, Lady Deathknell is shown to have a combat level of 200 and 10,000 hitpoints. If she is killed, she will simply regain all of her health.
- During the Combat Improvements Beta, Lady Deathknell gave away free special attack weapons for users to try at the combat academy.