WILD STRIKE 5, X, 4
Off-Hand Attack. Must follow a lead attack. If it hits, this attack strikes for +10...30...35 damage and any Stance being used by target foe ends. This attack cannot be blocked.
FOX FANGS 5, 1/2, 8
Off-Hand Attack. Must follow a lead attack. Fox Fangs cannot be blocked and strikes for +5...25...30 damage if it hits.
Both skills serve their purpose. While you may see 1 energy skills as a bad update, it wasn't. The health sacrifice is cost enough. 1 Energy is just a mechanic for the game, just in case someone just happened to have mindwrack on them from an edenial mesmer, it would still have a chance to trigger. They don't break the game.
Fox Fangs purpose is a very very fast offhand. Albeit, wildstrike may be better in many builds, there are some that it isn't. Any build that uses Blades of Steel may be better off with Fox Fangs, due to the lengthier recharge, allowing more flexibility in that combination.
The idea is, however, that if all 1200+ skills were 100% viable, the game would be, quite literally, unplayable. No one would know what they might even be countering. There would be no "meta". You would go into GvG blind. You wouldn't know if your opponent was running hexes, conditions, a spike, a VoD turtle build, a this, a that. There would be so many possible builds and combinations, that it would cause total chaos.
So in that regard, be happy some skills are just niche, and be happy some are just so crappy they are unusable. But when trying to show unusable skills, make sure they are truly unusable.
[wiki]Withdraw Hexes[/wiki]