The mentions I caught that sound like they could affect PvP were:

Buffing up bone nec dmg and bone armor
Reduced casting delay on foh
Buff to fend / impale (I think impale now always hits and is not AR based)
Buff to barb's throw
Buff to sorc's nova
Hydras are now a bit more like traps (reduced/no cast delay, but cap on # of hydras you can have out? I didn't quite hear everything)
Sorc's Blaze giving FRW bonus
Sounded like buffs to barb's war cry

Anything else?

This post was edited by Bell Guard on Dec 16 2021 01:58pm

martial arts skill for assassin buffed (side attacks to your trapsin)
druid summons will be stronger (side pets for your ele druid)

why sorc nova buff and throw barb buff is relevant to pvp?

...depends on how much they got buffed