I don’t have Costumed Rigard, I don’t have Grzaul, I don’t have BK…
Sounds like you need some really good heroes to accompany Myztero to make him shine.
But if you have Grazul, BK, and/or Costumed Rigard, probably you already have a line of great heroes and no need of Myztero at all.
So, for the P2P players, Myztero is just an additional and adding more fun on their games.
For C2P or F2P players, Myztero is not a life saver and could not make an immediate difference, cause you need a few other specific heroes to make it work.
Since I have the mats, I will level him up later on, but not a priority.
I will try to put him together with Sif, Ariel, Marjana and MLF and see what will that be.