So there used to be a temp power in Siren's Call that gave you +Perception. It's apparently been removed, but when active it put a red HUD in front of your character's face, I always wanted that option in the character creator. It's already in the code, the dev's should just put it in the costume creator if it's truly gone now. I wish I had a pic, but I only have this link for proof that it exists https://archive.paragonwiki.com/wiki/IR_Goggles_(PvP)