I don't mean that banishment shouldn't banish all the creatures of the certain type when it's cast. Because that would make the HP-loss not worrying at all.
What I mean it that it should only be able to target monsters within 10-15 squares and then banish all of a certain type on the lvl.
I think this change should be implemented because at the moment it's far too easy to banish a whole lvl from inside a safe sanctuary, and then you just run around killing/teleporting/destructing/trapping the uniques. And scooping up the items in the vaults etc.
ZAL