Is there something that clearly defines when the enemies don't even get hit animations? Is it based on the attack value? Or the CP value? It clearly doesn't seem to be raw damage because sometimes I can still finish these enemies almost instantly...
Regarding pulls, I finally got Hijikata, followed by Katsura with the selector ticket, completing the Gintama crew. Now going to focus cards, although I've already used up most of the easier story stages which will make my progress slower.
For free pulls, I wasn't keeping track of what was coming from what (because I started playing recently), but I did get Lady Zero (Clone), Ash, Mukai, Adelheid and Nameless. I got Orochi too but it was from some other promotion, I think.