One of the first warbeasts I'd like to get fro my up and coming Legion army is the Raek. It animus and Bounding Leap rule are very nice. However, I've read that the Bounding Leap ability does not allow him to charge (the idea is to use its animus in conjunction with BL). Is this true?

Additionally, I'm thinking of running 2 or 3 as part of caster kill games (partly depending on whther the above question is answered). How well do they work for assassin runs or showed I invest in just one? (I realize thats something of a subjective question but thats why I'm asking opionions)