Not too shabby
Speaking of underused cards, Oath of Lieges is the poor mans Land Tax
Sure, the timing might suck, but the alternative of no Heroes of the Realm cards just kicks employees while theyre down
Your copy, if its a permanent creature spell, also gains haste
The weird stuff is good too, so wax that shell and enter the fray, only to disappear like a ninja
However, since exiling those cards is optional, and choosing to exile a card this way causes the previously exiled cards to return to their owners' graveyards, the order generally doesn't matter: You'll wind up with at most one of those cards exiled, and the rest will be in the appropriate graveyards