As we all know 6* are pretty much (useless) now except a few ones .
So why not do some event like the last one of michone .
They wouldn’t break (your balance ) scopley and they wouldn’t give any advantages to f2p over p2w
And more importantly it will be fun
Here’s an example of a dual specialist I have in mind
The dual 6* status lvl 90
Att 1400 def 2000 hp 2000
Deals 3 attaque of 150% damage to one enemy, this character gets +50 crit for 2 turns and recover from all penalties
This character gets impair and defense down block for 4 turns
Initial cooldown turn 1
Cooldown 4 turns
Number of use 3
Collection items : 12
10 red flags
Jesus Road to survival #3
I dont know , le me here what you have in mind for some dual specialist.
Like vitality/ overheal , wastenot / deca### , guardian 2 / disarmament , …