Class

Mage

Magical Vulnerability · levels at 3 / 6 / 9 different pieces

Every Mage piece: Each friendly Mage on the board (including itself) gives Mages +10% mana gain, up to +60%.

3
All enemies get -30% magic resistance.
6
All enemies get another -35% magic resistance (-65% in total).
9
Enemies freeze (stunned) whenever they take magic damage, for magic damage ÷ 400 seconds (at least 0.2s).
Note: The in-game note says the freeze lasts at least 0.5 seconds; the minimum is 0.2 seconds.

Official in-game tooltip

For every standing friendly Mage on the chessboard, Mage pieces receive +10% bonus mana restoration, up to a maximum of 60%.

Class Perk: Magical Vulnerability
Active when you have at least (N) different mage pieces on board. (Multiple effects stack)

(3) Mages: All enemies suffer -30% magic resistance.
(6) Mages: All enemies suffer -35% magic resistance.
(9) Mages: All enemies are cursed with frost incantation, which freezes them upon receiving magical damage. Lasts longer for more increased damage taken.

Mages are keen intellectuals who have spent years studying arcane knowledge. This allows them to make their victims more vulnerable to magic damage.