That is what kind of makes my decision a little more difficult. Fighters do revive with skill, so having Elena revive might be what she needs to get her special off and extend the fight (obviously Killhare reviving would be good too).
I guess I am just not sold internally with who I will use more and how I can setup my attacks. Right now my 3 stack purple is Kage-Sartana-Proteus and it is pretty good. I would probably drop Proteus for Killhare in that stack because he often dies before he fires. I do have tibs costume (no emblems) but that would come out for mono stacks.
My red stack is usually Zim-BT+20 or Zim-Marj and as a third either Grazhul or Wilbur. It gets tough thinking about where Elena fits in here, because I havent tried raiding with her yet. We just had a green titan and she got her first use there and the tile damage is really nice.