PVP tiers?

While i did say that it was entirely subject to change because i can't play PvP in my version yet, B> proof you can be hit by a skill post-invincibility animation so i can better prepare myself for what PvP will be like. I haven't seen a video with real lagless playing with visible proof of invincibility for all skills (mostly because PvP in itself is a clusterf'uck to begin with; how you manage to see anything clearly is beyond me).