What is your vote for the most overpowered spell in the game?

[lostkiwi]

I'm going with Fear. It only costs 10 mana, it can be cast on a stack of any size (ie it is not restricted to your leadership), and it lasts a whopping 4 rounds at level 3.

As a mage with Higher Magic, you can disable 2 stacks of opponents within the first round, assuming they are lower level than any of your troops. And the spell is cheap enough and lasts long enough that it can easily be maintained.

And, as a bonus side effect, a boss skips his turn to cast spells if all of his remaining troops are feared.

I was considering Evlin, however it's more of a support for Black Knights, with the Black Nights being the overpowered of the two.

Any other suggestions?