How to interrupt casters on my 51 Ranger?

[Jibartik]

I remember when I played my first monk.

I was like.. Uh, im helpless in this scenario?!?!

Never played a class that couldn't at least try to force an interrupt until then.

Even an outdoor knockback spell for rangers would have been nice.

Rogues, and monks, rangers and anyone else? just SOL?

I spent like 15 minuets fighting a level 18 blue healer the other night on TLP lol