Help with Macro please

This is for Macro Toolkit and I’d like to keep it that way if possible. I’ve spend hours and hours trying to mess with this macro to make it do what I want. I’m not that experinced with macros. Here’s what I have
/use charge
/castsequence reset=0.3 Devastate,devastate,devastate
/use [combat]Berserker Rage
/use [combat]Shield Slam
/use [combat]revenge
/use [combat]shield barrier
/use [combat]Avatar
/use demoralizing shout

What I would like for it to do is (all in one macro) start off with charge + hanstring at the same time. Then everything it does now but with Thunder Clap added to the rotation.
Please help… Thanks in advance :smiley:

/use charge
/cast Shield Barrier
/cast Dragon Roar
/cast Hamstring
/cast Shield Block
/cast Bloodbath
/cast Shield Slam
/cast Heroic Strike
/cast Revenge
/cast Execute
/cast Devastate
/cast Demoralizing Shout
/cast Shield Block

Try this layout, tried to take it from GS. Hope it works for you