@Blueflame After Searat has Richard set off the light bomb, remember to include your response to
this post where I described how Argus is going to start his melee assault as soon as Richard sets off his spell.
Argus will spring himself forward towards Mason, aim two fire-empowered claw strikes at his chest, jump a few stepss backwards, and attempts to dive past him to the side then roll to his feet behind Mason. I'm not sure how fast Mason is when he's in his midnight form, so leaving it up to you whether the attacks connect, how much damage they do, and if he is able to block Argus from diving past him.