I don't find it fun.

You've been busy with work lately, are you perhaps too exhausted from trying to keep up with the 1 post per day goal? I admire your consistent hard work, but I also worry about you. It's okay to take a break, so how about not thinking about anything today and just resting well?

There should be strategies like character leveling and team formation, but I didn't know the details so I stopped playing.

There aren't many hidden quads for building combat decks, right? haha