Rogue health steals through blocks.
I could've sworn Rogue didn't health steal through blocks, although she could "buff steal" through blocks.. Even though beneficial in some scenarios, sometimes its not. Most often against advanced AI, if they block your special attack, once it comes to an end they'll rebound and punish you instantly unless said SP attack puts a distance between them. Rogue's SP1 doesn't.
Can anyone specify if this is working like it should or a bug?