Just got CoD on my fire/dark brute. Its endurance cost is quite high yes, 0.39 according to my version of heroplanner, so unenhanced its the same as running another armour toggle. Im not sure how much extra Immob protection it will provide but i'm sure it couldnt hurt. PvP is where the +perception element of CoD really shines, and if you intend to PvP it is a good power choice if you can fit it in.(take over powerpool stealth any day of the week 
*Edit* My version of hero planner also states that CoD's defense is 3.25 in melee and ranged and 0 in aoe, unenhanced. Really dont think its worth adding slots for defense.
take it, if only for use against Longbow spec-ops.
Worth a power pick just for that.
Synaesthetix:if your mum wasn't already dead I would go kill her for bringing
you into the world
I'm planning to get it for Night Widdows, Imo protection and of course style.
"Well, they found my diary today.
They were appropriately appalled
at the discovery of the eight victims
They're now putting it all together.
Women wrapped in silk
with one leg missing
Eight legs, one body, silk,
spider, brilliant!"
im ss/da and i skipped Cloak of Darkness went straight to cloak of fear, i love CoF its saved my behind so many times i cant count, sure the rage slows down a bit but i dont find it noticable,
i wanted to aske other brutes who have CoD theyre oppinions on it, i.e
is the +def noticable? had it got a big end drain?, im lackin on the immob resists and spines/ scrappers can pin me down with impale so i have to activate Cj to get free, so im really considering it now.
so whats your thoughts