No invisibility or stealth!!!

All that encourages is ganking and griefing, because that is the nature of those type of toons.

Also, nerf the snares for pvp or allow for useable counters. As it stands chaining together stomp, frenzied burst, and vermin swarm will immobilize, stun, lock down your skill tree, perform a knock back, and similaniously do high burst and dot damage.

Unholy blessing isn't a suitable counter because stomp locks out the tree, and you take all the damage and get the knock back before you can activate it, making it pointless as suitable counter.

Either, make unholy blessing grant full immunity to snares and knock backs so it can be used preemptively...

...or make knock backs erase snares and snare erase knock backs...

...or put both vermin swarm and frenzied blast on higher cooldowns. Like 60 seconds fo vermin swarm and 45 for frenzied blast, to discourge people from using both skills in one build.

...and/or impliment global cool downs to counter chainig skills.

In any case, the snare, dot, and knock back mechanics of frenzied blast and vermin swarm -- especially when they are chained -- are way too overpowered, and this combo is what pvp has come down to.