Quote Originally Posted by Khayos
Speaking of conditions, does anyone know if it is at all possible to check for a cast spell?

Situation, I'm running 3 hunters, my main casts Hunter's mark of hotkey 3, the two alts /startattack from the same hotkey, however sometimes the /startattack doesn't kick in and I currently have to press hotkey 3 again and also casting Hunter's Mark again.
Maybe you could use a castsequence for hunter's mark?

/castsequence reset=3/target Hunter's Mark ,

The last "," is an empty cast, and it resets on an new target or after 3 seconds.