Between 2 DS, u got time to storm path combo, butcher block combo, each 2 times (my skill speed is 399), that means u can time ur inner beast on each DS like this.
Twin won t DS if there s a fireball happenin or if she s divin, DS will come right after those fireballs or/and dives.
U also need healers protections, DS dmg can be reduce to 0 dependin if parry or not. Yesterday, i ve eat DS at 0 dmg, 4 dmg (was funny to see this), 200 dmg, but also at 4k+ dmg with a bad timing of inner beast or healer protections.
For Garuda, when u' re tankin Garuda+Suparna, most of the time (dependin of dps on chirada), WW's appears after their jump, when they jump, i m dodgin circle AoE while poppin all cd's, soon they reappear, i m inner beast'in one of em, WW's dont hit that much like this. I think for the other parts of the fight, u don t really need cd's, just storm path/ inner beast soon u can to help ur healers.