A skull based Mythic could have a trait to give some mana to all allies when matching skulls for example. It would be a little above Monk’s trait, but considering that the class trait works for any gems(skulls included) and this idea of mine would work only on skulls and doomskulls it seems pretty balanced. It would be interesting in different compositions if you keep the troop with said trait in the front or the back. Imagine it as rage fueled power.