Do you mean javelineer or javalin? One is a guy who uses the javelins, the other is a weapon... I.e. is this supposed to be a weapon or creature?
On a different note. Thats an amusing use of
synnergy... Reminds of something I've seen before, but I can't remember where.
It does seem a little redundant though, given that the warden already does something very similar.
...What if you had it throw your weapon at a target instead?