Raishin comes back so quickly after a wound that severe? You really expect me to believe he has diminished healing. Anyway, the big thing this week is that Frey and Loki were artificially enhanced and that Rabbi wasn’t actually the broken one. It’s the classic case where Frey probably has more power, but Loki has control. Unless, of course, Loki was holding back, in which case Frey is as weak as we always thought.
This arc is coming to a close next week. Loki has joined the fight. Presumably, he’s got too much honor to gang up on Raishin, so he’s probably there to help him. He wouldn’t even finish Raishin off when he was down after all. Next week, they kill all the things, right? For vengeance!