I would vote for SS, but wouldn’t you then have team cost issues after UE?
Your SS DSA, with Gallio stun and Zephy TT will potentially give you a quick charge for bloodthirst.
Yeah, I will def have cost issues but figured since i got 8 gems from events I’ll just run pyramids for a couple hero ranks.
Good luck!
Reverelk is more of a support monster. With the stunners you have, you’ll need a finisher. SS will do that job for you 
Ss for sure! One of the best monsters in the game at clearing a fl
Normally I would say SS since sleep is so strong in PvE, but in this case revelk is stronger. SS will still function as a sleeper without being fully evolved. Revelk on the other hand gets camouflage at the final stage, which is much more valuable. Plus it means you can stall out till warca’s bomb a lot more effectively before leading into autopoisoner > terror
Final battle