User blog comment:Lesanthosxia/Grugnir, Guardian of Immortality/@comment-70.171.210.88-20120129223122/@comment-2066615-20120130134411

I thought the active was a bit too much as Sam (below) said :0

The passive component is more of just a synergy to work with his Q or R. More like just a free Ninja-tabi, except that it works against tower. The active component is meant for supportive usage though.