Glyph of Frost

The next time anyone affected by this spell is struck in melee, the attack will be blocked by a barrier of ice; if this person also has the frostkin skill, their opponent will also receive cold damage. This spell will end after it has blocked a single attack. The barrier is only so sturdy-- particularly powerful blows will simply pass through the ward, dissipating it to no effect. No form of damage reduction will raise that threshold.