Vanilla Black Arrow?

[xatab9000]

http://db.valkyrie-wow.org/?spell=3674 found this
can find any info

[Krinkov]

the idiot devs who were in charge of balancing deemed it ''too powerful'' and it was removed during the final version, only existed in the beta

some NPC hunter in undercity they added in WoTLK uses it tho

[lolwutticus]

70% movement speed reduction for 30 seconds. It's already too overpowered without the other two effects it has!