As hinted at above, the spear triggers its effect on almost every warrior spear skill, but on very few for other professions. (Hint hint, Anet. Please correct this.) On rangers, however, it will only trigger the shark bite animation on:
•Spear 3, when landing a critical hit
•Spear 2, when landing a critical hit on a reflected projectile. Critting with the attack itself will NOT trigger the effect.
The ghost shark projectile will occur on:
•Spear 4, while throwing the spear.
•Downed #1, but only if downed while wielding the spear. The shark will bounce between targets as the daggers normally do. Fun to watch, I think.
Now, I may be a bit biased but, in my opinion, rangers are the strongest underwater profession. That in mind, I would put it on your ranger. But, of course, whatever you play most would be the more logical choice.
