Yes, I know the meta is to play Gunslinger with Hit master, but this damage add applies only to side attacks, not front and back, and i’m not fully comfortable with that kind of play. That’s why I’m planning to do a build with Grudge, Cursed Doll, keen weapon blunt and… ambush master. And Peacemaker at 1, of course. If there are points to spare, maybe adrenaline or something.
On level 3 engraving, adds 25% damage instead of 16% hit máster. The other option is Master brawler that do the same with front attacks, but I think is safer and you can make sinergy with back skills like the shotguns and bullet rain with “ambush” tripod.
The benefits of Earth entrophy are:
2 PCS: +15% crit damage, 50% if is front ir back attack. That’s basically doing another keen blunt weapon if you hit back or front.
4 PCS: every time you hit back or front, 5s Buff of +20% crit rate.
6 PCS: +5% damage, +18% if is back or front.
I think this can be do an insane sinergy. Basically, if you step behind the enemy you do +43% damage (engraving + set), +20% crit chance and +50% extra because with shotgun skills you basically will do critic every hit. Poem of salvation for 2 of the 6 pieces is a good option todo, because you’ll do 14% extra damage at full stack
A variant off this is putting Master Brawler too instead of adrenaline, for do front attacks with rifle skills and move to the back and drop the shotgun ones after this.
What do you think? I’m gonna do anyway, but I’ll like to know if I’m crazy or is a good idea 
