I haven't seen any threads discussing this, but look at http://www.gameinformer.com/cfs-filesystemfile.ashx/__key/CommunityServer-Components-ImageFileViewer/CommunityServer-Components-SiteFiles-imagefeed-featured-bethesda-elderscrolls-elderscrollsv/SkillsMenu.jpg_2D00_610x0.jpg
It says 'Destruction skill
makes it easier to cast spells like Fireball, Ice Spike, and Lightning Bolt' meaning there's a chance that you won't successfully cast it. Thoughts?