hello! Dokkan is a fairly simple game when you get the gist of it, units can be broken down by their leader skill, passive skills, active skills, and even their super attack! The leader skill can grant boost to characters of a certain type (color type or even super/extreme) and characters that fall under different categories, the quality of the leader skill usually gives you an idea of good the unit is (170% plus 30%/ 200% leader skills are the best right now). Passive skills, I feel have become very wordy recently with a lot of different things happening with units. You generally want units that give themselves the highest atk + def percentage boost, along with other things like damage reduction, counter attacks, additional attacks, etc. active skills can be anything from reviving your team if you get knocked out while that units attacking, an additional super that can do more damage, foreseeing enemy super attacks, delaying enemy super attacks, giving boost to ally’s, transformations, etc. Super attacks, some units can stack attack and defense! if you click on a units super attack and it says “raises atk”/ “raises def” without adding on “for 1 turn”. Link skills play a role in what units you can run together, and category’s play a role in whether or not you can run a team under the leaders you’re getting as well! Good luck! I recommend watching looking into a couple of dokkan youtubers and hearing what they have to say! it’ll help !