
I have recently descovered two spells which are Backfire and Power Spike. Both are great - when they work.
The question is, are there any exceptions to the spells that the enemy casts in order for them to work? I have been doing some PvP recently and noticed that sometimes when for example I use backfire, the enemy player doesn't take any damage when doing a skill and when I do power spike (interruption), the other player will just continue using the spell without interruption. For a start I thought I was just seing things but now it seems to happen about 30% of the time or so.
Any ideas why?