Increase Phase Shift Cooldown

[Roomba]

There's only a small fraction of the crew willing to go after and capable of taking on the wizard in any given round. The longer wizard-fighting is prolonged, the higher the chance that A: the wizard is killed three minutes in the round or B: the wizard kills and mugs all his attackers, at which point the only people who could have stopped the wizard are dead and he's now armed with all their stuff, and the rest of the round is a free killing spree.