Help identify an addon

[relogger]

I saw a raid video yesterday, and there is a recount-like window at the side of screen, it can record boss's percentage of hp, combat time and boss name. THX a lot. if you not clear of what I said, watch 3w .youtube. com/watch?v=ncOTyhI-H7o in 2:40 rogue pov, at top right corner.

[Kykypyka]

there is a thread called Ask it! UI/Mods Edition
and if top telft corner it's DXE@curse.com