Yep Slower Squads are favourable for this Event. But i will stick with my Helper Squad anyway cause if i have to build a Slow Squad i would rather use some 5* and not some shitty 2*. I do not have enough slow 5* (only Bipinna Cosmos and Lily Rubellum) and i prefer Fast Squads anyway for 12-5 Farming. My Allies with low Speed are quite helpfull in this Event but i would advise anyone not to pump Manyus in Units you aren't a fan of only to have a Slow Squad for 2 Weeks.