5 stars: For newbie here : (1. you need to farm at least 10k+ diamond to catch the event character or pendant. never ever use your diamond for opening premium card or anything that use diamond, use it only for event pack. (2. diamond in this game is pretty easy to get, you will roughly get 5k-10k+ a month for free just by playing. (3. if you new player, use \
3 stars: Legendary Yoonrang a very unreasonable character, just playing immediately lost, the character is too excessive so it's not balanced.
4 stars: This game are so fun, but rank system must be fixed
5 stars: need some nerfs and buffs. especially s+ rating somuch imba
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