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

[Zechnophobe]

All units in its level range. And if you haven't used it, I can understand how you would think fear is better .

Keep in mind however, that a spells duration ticks down at the end of a units turn. THis is important with level 1 target that lasts only a single turn. Casting it on something, then immediately going with that unit will use it right up!