Hi Noel,thanks for the Suggestion but the Problem is the milseconds After dismounting, the Short Time where the PET is Not recognized...this does Not Happen everytime.
Another Short Update: thanks To kbrebel we could find the reason for wrathguard Not Casting wrathstorn...every warlock with this Problem should Check it's petbar with active demon wrathguard ... Make sure the spell is on the petbar. I'll try To find another Solution,but for now ... This worked perfectly.
I'm working currently on Support and usage of all Talents from talenttree and glyphs for warlocks -> if u have Suggestions pm me,no pm means i do it like i feel it's okay and it fits my needs