So after getting rofl pwned on hard many times I figured out how to cheese the fight on hard mode. Macah has a passive that I completely forgot about called last chance. This is the key to cheesing the fight. Basically you can respawn non stop when you die and each time you respawn you come back with full health on top of this as long as Macah is still alive when the other 2 get close to dying her last chance skill kicks in and she puts them in stasis and they heal instead of dying. when you get to the final arena you heal up and approach the fountain then kill the packs of enemies then attack the boss, Be sure to keep macah up when anyone is low...you can also use cheese to let someone die on purpose and then spawn them behind the beast when he flys away from you so keep that in mind to. Make sure that you are as close to full health before you attack the boss to start phase 2 then do enough damage to send him to the fountain, make sure you run straight there as stopping to heal now will mean he gains more life back and makes your job harder. Attack the fountain with regular attacks this time do not waste abilities save them for killing the regenerating mobs. Now once the fountain retracts into the platform move mid screen This is key to victory as you will not be far from any place the monster spawns and can easily leap with angelos, chain fist with gore or spear toss to interrupt his fire walls, focus the regenerating mobs down. If it is up use Macah's stasis to freeze the beast in place and kill the packs packs not caught in stasis this is easier if you can get the monster to focus Macah and then kill with the other 2 away from the fire. If Macah dies which is perfectly fine just wait till the boss moves and respawn her behind him so that she can keep his focus and stop his fire walls. Her last chance will keep the other 2 up a long enough time to focus the packs and if necessary you can stasis some of them as well just make sure she is alive and well when they are close to death also when they enter stasis they take no damage and heal so don't be afraid to tank and interrupt till you drop don't bother kiting just rush the regenerating mobs down till they are dead DONT LET THEM HEAL IN THE HEAL BUBBLES KILL THEM and keep the fight mid screen as much as possible so you don't have to tank to much fire to reach wherever the boss spawns and interrupt his fire walls . ONLY AFTER ALL THE MOBS ARE DEAD do you focus the boss. At this point before the last regenerating mob drops save your game as you have basically won the fight. Phase 3 starts after you get him super low again don't stop no matter how low you are just rush the fountain kill it and and run towards him he should die before he can fly away at this point, save a gore chain spin and you can burn the fountain and the boss down in seconds in phase 3 then it's a short cinematic and a long wait till the DLC drops.....