If you have been thinking that buff duration on your inner ability is cool, then you are wrong.
With permanent pet auto buff (auto buff comes with permanent pet) now, you can have your buffs activated forever, hence buff duration is not useful at all!
Imagine you put your bowmaster's sharp eyes skill on the pet auto buff, so your sharp eyes is now activated forever unless your pet die off. So what is the use of buff duration to increase the duration of sharp eyes now?
You can have up to 3 auto buffs from permanent pets like (JR orchid, von leon, hilla). If you have buff duration on your inner ability, this post can keep your thinking.. about the worthiness of buff duration =D.
A lot of people has been asking me what is the best lines to keep for inner ability here is the answer to your question.
1st line - 20% boss dmg OR attack speed +1
2nd line - item drop rate, critical rate, attack, % dmg to normal mobs
3rd line - item drop rate, critical rate, attack, % dmg to normal mobs
Note: You cannot have same lines in inner ability. All the lines should be different. So you cannot have 2 critical rate lines, etc.
Your first line always stay at legendary rank. 2nd and 3rd lines varies between rare to legendary rank. 3rd line is likely to stay at rare rank...
