Gaming PC Gaming WoW Moviewatch: Ice block ftw! By Elizabeth Harper March 4, 2007 12:20 pm EST Oh, sure — any mage who's been around the block a time or two knows just how useful the talent ice block can be. For a scant 21 points in the frost tree, ice block makes the mage immune to all damage for 10 seconds, on a 5 minute cooldown. And apparently, with good timing, it allows you to do things like Mikeystar did in this video.