2.5-4% Bonus Critical Chance on Chained Hit. Stacks 5 times.
Hitting at least 3 enemies with an attack, increases your damage by 24-36% for 3 seconds.
5-8% Strength for every shot fired during continuous fire. Stacks 5 times.
Critical hit chance scales by your current heat level up to 27.5-50%. Also increases critical ranged attacks damage by 4-10%.
Hit a fat rip on your bong then proceed to swing and scream non-stop for about 20 minutes. Now and again, Q and fire your plasma gun into a crowd for self-defense, to get rid of those metal guys(or any specialist and elite, you'll figure it out), and to trigger on your toes and agile engagement. Prep Krak to kill meaty guys and make your life easy. Build boasts some insane survival with a ~20% toughness per kill and many melee damage boosters.
Oh yeah, and rending strikes are kinda interchangeable based on what you like, rending is generally best all around, competitive urge if you want more horde clear damage, bring it down for bringing it down.