Increase Phase Shift Cooldown

[69andahalf]

Glad there has been lots of input, and I see where everyone is coming from. The main idea was to resurrect less used spells and force wizards to choose between rambo and prolonged survival, but I can see now that people would rather simply use whichever spells they want (not that it was my intent to force anyone to use certain spells). While I still think that 1 minute would force wizards to better choose their fights and plan better than just, "lol magic missile, fire ball, ice beam, and phase shift outta there", I can see that it may make the wizard too easy to deal with.