I'm in love with Jesus and proud of it!
MiA - A glowing halo (pun intended) above your player's head
CoveyBlood - When shot, you bleed blue blood like Grunts do
Blizzard - Snow and fog swirls around your player
Neon - Your player has a green aura around them
Evanescence - Upon death, your body fades away until it can't be seen
Retro - Upon taking damage or recharging, stats reminiscent of RPG stats appear oabove your player (for example, if shot once with the DMR, it might say above your head -15, etc)
Smolder - Similar to flames, but with thick black smoke instead
Mjolnir - Upon death, your player emits a jolt of electricity with a thunderclap (does not do damage lol)