Low level crit troops or high level mana troops for onatel

Im wondering which to use for onatel, level 12 mana troops or level 5 crit troops. She is on the defense path, so for now she’s a very tanky gal. Should i use a higher level troop or a compatible defense and hp troop?!

Her base stats

Crit troops


Mana troops

I think mana troops will beneficial her more since her specials related to mana stealing

Given the level difference, Mana right now is better.

Personally I’m working on leveling a crit troop to put on Guinevere though so she can take a mono-purple match. My yellow crit troop is at level 10 now (mana at 15). I imagine Onatel would like that too eventually with a higher level crit troop.