I got the idea while playing with my priest and respecing. There is notifiers for Overpower, but how hard would it be to make a Matyrdon Notifier? When the player will receive Matyrdon you will see a message "Matyrdon" on screen / hear a sound.
Gives you a 50% chance to gain the Focused Casting effect that lasts for 6 sec after being the victim of a critical strike. The Focused Casting effect prevents you from losing casting time when taking damage.