I managed to 3 star 90/12 on my second attempt. Like others the Demon was easy, its all the other things rushing that make it hard then the Alchemist blazing everything down if I don't withdraw weakened units within AOE fast enough.

I have been lucky so far with 4 Colins dropping outside the 100% (I got 4 of those). Not going to farm her specifically (got +2/-2 using first 3) so focusing on Heavies. So far a grand total of 1 Samurai and another Colin from that. Also picked up a Rogue on my first run through.

Keeping those sweet, sweet SCs for next week