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

[TemjinGold]

I think some of you guys might be misunderstanding the question: It isn't about the most powerful spell, it's the most OVERPOWERED spell.

Phantom and Target I can see. Death Star is strong but not overpowered considering its cost and the fact that you can only cast it once a turn. Yes it does a lot of damage. Fear is overpowered because you can shut down a stack for 4 turns regardless of the size of that stack. With a mage, you can shut down 4 stacks in 2 rounds, effectively allowing you to do whatever you please.