I really don't have any complaints about Glacius either; he's easy to play with.  However, categorizing his Openers might be confusing.  You may think that the Liquidize falls under the "low" category.  But in reality, it's actually a "swipe/stationary" move.  Jago's "low" Ninja Slide will counter it.  Believe it or now, the Icy Grip is Glacius' "low" move.   Jago's Wind Kick counters it.  Speaking of the Icy Grip, I think it's useless.