For openers you can refer to the following, I guess:

Xenosys' openers with 1 minute countdown pre-pull, both for MT/OT: https://www.youtube.com/watch?v=wR6bsosVW7I

Layla's openers without 1 minute countdown pre-pull, both for MT/OT (in the FAQ section of his twitch): https://www.twitch.tv/klopsva

For mid fight triple cleave, use berserk after heavy swing when you have 4 stacks, cleave infuriate cleave, do two combos and use raw intuition or vengeance to get 5 more stacks before the final cleave and fracture. Example:

(4 stacks) > Heavy Swing (Berserk) > Fell Cleave (Infuriate) > Fell Cleave (Raw Intuition) > Skull Sunder > Butcher's Block > Heavy Swing > Maim > Storm's Eye > Fracture > Fell Cleave.