Main issue with Bloody Valentine is that she won't be the best option against DL in high streak PFs because her attack stat (base 8,640 as a level 60 invested diamond) is rather low. The low damage output from Bloody Valentine will increase the chance of timing the fight out if the rest of the team isn't strong enough to take out the other two fighters on the opposing team efficiently, and at that point it is just better to bring a Bloodbath, Heart of Darkness, or Tres Chic that can actually take out the DL efficiently. In lower streak PFs, some story fights, and some rift stuff Bloody Valentine is an acceptable option against DL but not the fastest option.Wouldn't Bloody Valentine be a good counter to Dread Locks as well? Usually I use her against that annoying goldy locks from some miserable part of Hell and her SAs are no problem at all. I just make sure to equip Eliza's regen taunt, get a max of special moves and it does the trick.