I dunno if I think it would need to go up to 3 fury tho if it were to affect a unit. At that point it would never be cast on the Carnivean just cause it's so expensive. *shrug* I dunno. I don't see it right now as being horribly broken for 2 fury if they changed it to model/unit.
Edit: I just realized that if you placed this on a unit of legionnaires or other small-based infantry with a decent mat, you could essentially prevent any tramples because the trampling model would take d3 damage for every model he hits, regardless of whether or not he kills it. Then from the models that aren't killed, the trampler takes free strikes. That would make this animus absurdly powerful in that way at least. Thoughts?