Your just mixing things together and you know better man lol Your combining gear and melee hit perks and exotics. By your logic many supers are very very strong. Actually a titan has a melee that grants extremely more protection than a warlock. Every kill refills it. Couple blind shots and a melee to 5 people in a row and each would grant the killer extra perks. Unlike a warlock who has to wait for a recharge. Or imo fist for breaker. Combined with charge or even the sunspots or.....well....you get the picture lol Don't get me wrong it can be a beast but there are a lot of ifs on that. Radiant itself is like 6% I believe. I could be wrong but buff is certainly not a stand alone indestructible force.