They really just need to make IB spammable and cost 1 wrath stack and work like Death Strike for a heal and a blood shield type thing. Have like another Combo of Heavy Swing--->Inner Beast to increase IB potency and heal/absorb shield. So if you use IB without the combo it is just a heal, use with combo and it heals/shield. So then we are working to keep wrath stacks up and also relatively reliably healing ourselves. I think the potency of the IB heal would have to be lower to get the balance right but at least it would be fun to play and more competitive with PLD