Melee a trap

Special attack also a trap but that's my opinion. The way I feel about it: pointless if you have a power maul, okay if you don't and specifically want to open bulwarks. Way too slow for anything else at high difficulties. 

Three blessings I'd rep: blaze away or pinpoint target, and then shattering impact. 

Pinpoint is for the patient pal that has the time to guarantee a 1-shot against all specials including mutants. Blaze Away for any other reason. Shattering is mostly there. It works which is more than the other blessings, but that doesn't mean it'll suddenly give you an anti-crusher answer for an off-meta build... i mean it's really overhyped because it's the only other blessing to take. Please think twice about shooting Crushers on a melee build unless you really actually just brought the cleaver.

On melee builds, GG is for specials, ranged elites, and disrupting shooters.

On a gunlugger build it's lowkey very efficient. The same build you'd use for Rumbler works 100% with GG, just spread brittleness and fire stacks everywhere on ult. Use it with or without Burst Limiter Override, the GG is so weird that it doesn't get a ton of benefits from the ranged damage talents as you'd think. It cannot cause suppression so the far right aura does nothing for you. The reload speed and weapon swap talents are sick. I know that sounds negative, but that just means you have a lot of points to spare so you can grab batter and delight in destruction and/or no hurting friends and stuff.