Infiite pet battle trainer daily. (Fast PowerLvL)

Unlock dailies so you can duel trainers every day.

Go to trainer, pick quest duel him, chose what pet you want to powerlvl.
You cannot abandon quest cos its greyed out but there is workaround.
When you kill all his pets just do this: 
/script AbandonQuest();

You need to click macro while still in Pet Battle.
Just do it after you are done with killing his pets.

The trick is to hit abandon before it updates quest as completed.


Enjoy power leveling your pet.

Also:
For some reason its working on trainer in Dread Wastes - Wasterwalker Shu.
Quest name : Grand Master Shu
You can disband quest even in mid fight for some reason.

Need to try on some more.