Use Raaks to proc ASE anointments, "Power Inside" and use life steal augment for survivability. Scorcher Spider ant for 10% elemental damage to help with your raaks. ASE ends for raaks as soon as they start to fly so its a fast system to proc your buffs.
Very tied to gear. Once you have the right gear, can easily play on TVHM Mayhem 4. Stop gap and last stand relic are a must IMO. Bounty Hunter Class Mod as well to proc hunter skills that last long due to "Big Game"
Raak attack +1, enemies damaged by raak attack take 100% more damage, ASE 125% to badass or named, ASE 100% damage increase are the anoitments you want for guns. Grenade with 25% damage buff once thrown, or "its Piss" grenade for 20% increased damage.