Personal favourite of mine
Each month that passes I feel really big differences in what I can accomplish in power level within the different events. I also don’t run out of goals.
The 5* summon rates are generous compared to most gatcha games - and if you need more copies of a card, they have a fair pvp reward system that allows you to limit break whatever you want each month.
The player auction is also a really nice quality of life. If you miss an event you can still trade with other plays to get those cards when they get released into the auction pool.
The players in guilds are always friendly, and usually have discord servers to ask questions and such. It doesn’t feel lonely.
Overall definitely a very casual and consistent game, I love it in my daily routine.