Last Colo i used to have a full Moe SR lvl 50 team (Runa Kamiwano, Hiyori Katagiri, Minami Okishima, Kotori Hinakawa & Sora Shimada) and the same Runa for Support sinc ethey had the most SED of all the cards i had at that time. And with such a team i've managed to win most of the times agains lvl 2 opponents. Now i run a randomly mixed 3 Babe + 2 Moe deck, since these cards have the biggest SED at the moment (lvl 100-100+5). Currently i'm going for a 30 consequtive wins streak reward, so i stick to lvl 5 opponents to not waste focus if i'll somehow lose to someone and ruin my Streak of Consecutive Wins. After that i am going to try lvl 1 for one day, and go back down to lvl 2 if i'll fail too much... I wish i had a chart of all cards sorted by their max sed to constantly check if i have cards i should invest Wildcards first into to get the best units for PeroColo...

personally I never used any N SEC's i got on Colosseum Events, since i don't really understand how exactly they work, and if they only boost their own SED, it's pointless, sinc ethey are many times weaker than my SR lvl 50 were and SR lvl 100 & 105 are now. I also have no clue why there is an indicator of my total SED (700+) at my deck setup screen, if total SED has nothing at all to do with this type of events...