Tier list for future unit
https://altema.jp/anaden/risemararanking

I played this at JP server from launch
i can say its fun and atm the only good things is mariel as she will last forever the best ever healer till now.

For me if u r f2p save your gem till suzette or toova costume change is out , those 2 will make your dps up alot. Costume change also mean u got both the 6* unit and the unit new costume so its better that way than getting suzette now and farming the material to costume change( it very painful to farm) later.