Traya/DSB Failing against Revan, advice?

Fracture GMY if you're using DSB. GMY is their real DPS, and will allow you to take on the rest of the team while also keeping Traya alive longer and longer. Use Sion, Traya basic attacks to get rid of the pesky foresight. Stun people with DSB so you can hit through foresight (I generally target GK or sometimes GMY so that after revan dispels all debuffs GMY will still have the stagger/expose/etc so I can easily control him after fracture runs out.

When fracture finishes you want to swap TM to traya to heal her with Thrawn. Ideally she would have already taken a turn by now such that she can Isolate someone (Preferably Revan or GMY). If you aren't able to isolate yet, just keep treading water by keeping Traya alive and GMY fractured. As long as you can keep popping foresight and keeping GMY unable to attack you can survive to get off multiple annihilates. If GMY is fractured still annihilate Revan. If GMY isn't fractured and is about to take a turn or about to become a threat, take him out with annihilate. If you were able to get off isolate (Generally only happens if Traya resists Revan + Yoda TMR and you were able to increase Revan's cooldown by 1 with Nihilus before he can mark traya a second time) you're in even better position. If you have GMY fractured and Revan Isolated you can annihilate Jolee, and then kill Revan while he's isolated and he won't be able to save himself. Then kill GMY and hit auto.

I personally run a protection arrow, protection triangle, tenacity cross, and protection circle on traya, but mine is g12 and a little tankier so I can get away without the Crit Avoidance Arrow. The tenacity cross really helps make the TMR get resisted almost every time so I can usually get off isolate.

Lets assume you have no 7s Traya and lets assume she will die anyways it should be the following way happening:

Sion highest speed of your team, Thrawn speed = sion -1, Nihilus high speed, Bsf high speed, Traya doesnt matter for this lineup so 50 speed is fine full def set with 80% tenacity 55k protection to survive as long as possible

Fight starts vs fast Revans:
Traya gets a punch to about 50% (high atk gmy)
Nihilus activates -> Basic (if anyone has no foresight take him)
Gmy mostly activates here and you Traya will move to 20% protection
Sion activates -> AOE dispell
Thrawn -> swap tm with Nihilus -> AOE drain
Bsf -> stun gmy
Stay on gk to not activate his taunt, fracture gmy (in rare cases Revan if speed of gmy is extremely slow) and annihilate Revan first after that its about annihilating jolee while killing gmy, than stay on bastila (! not GK) and do him last

Have fun :)

Seems like the consensus is to fracture gmy instead of Revan. I'll give that a try.