Mastery Question-Pacify, Petrify, and Despair

Are those three masteries worth it? I have despair 3/3 and have definitely seen its value, but I'm not sure if it's the best investment of mastery points.
For petrify, I guess it could be useful, and I've had 1/3 for a while, but again, I'm not sure if there are better investments.
Finally, is it worth it to get pacify? I've never used it and I've seen some people max it while others don't have it at all. would it screw up your flow/tempo if the aar actually triggers? I feel like for certain nodes/abilities where you have to change your playstyle, it might be weird when it triggers sometimes but not always, so your playstyle would be weird. are there any abilities where it counters it really well?
and are deep wounds and assassin' worth it? my main bleed champs are aa and warlock if you want to count his heavy. and are any masteries more useful than assassin?
thanks for any guidance on all of these
current setup



top champs


For petrify, I guess it could be useful, and I've had 1/3 for a while, but again, I'm not sure if there are better investments.
Finally, is it worth it to get pacify? I've never used it and I've seen some people max it while others don't have it at all. would it screw up your flow/tempo if the aar actually triggers? I feel like for certain nodes/abilities where you have to change your playstyle, it might be weird when it triggers sometimes but not always, so your playstyle would be weird. are there any abilities where it counters it really well?
and are deep wounds and assassin' worth it? my main bleed champs are aa and warlock if you want to count his heavy. and are any masteries more useful than assassin?
thanks for any guidance on all of these
current setup



top champs


2
Comments
They also have a stun chance on their normal attacks.