Yeah, strength just deals with cool down. Melee has always been weird. They say you can't OHK with it but I've been hit at full health multiple times by warlocks and die like I was beat to crap before they touched me. Happened to me last week actually I was running Arcblade for the crucible bounty I need to finish for AoT and a void warlock just up and popped me with its melee one time and I was dead. I was like, "Wtf my armor is as high as it will go and I'm wearing armor thats is suppose to be stronger while using arc sub"...smh.