The problem I see with this is the fact that it's once again going to be forcing support players (I am one) into taking these, sacrificing power elsewhere in lieu of being a ward bot again. Nobody is going to take these over something else because nobody wards as it is
This seems cool but I think it would be better if the second one gave you an extra slot for one or more control wards instead of or in addition to being able to have two down at a time.