Updated for WotLK Classic from the original retail version of the addon here: https://www.curseforge.com/wow/addons/runepack
This is a simple rune tracking mod heavily based on Rune Hero.
When you use a rune it moves out to the left or right and fades then slowly moves back to the center when it is ready to use. The idea is to always have one place to check for your runes. If the box is empty dump some runic power. You should have close to one GCD left before your rune is ready when it crosses the border of the box.
This mod uses custom rune art based on the runes on the Ebon Blade that you receive at the end of the death Knight start area.