Yes, you can have it on off-hands and shields, but a healmonk doesn't use any of those. He uses the Istvan swords. So, the slots I mentioned are the only ones you can get it on as a healmonk. While it is an important stat for a healmonk you dont't necessarily need it on every item possible. Attack speed is also important, because your healing is based on your attacks. And first of all, you need to get the right amount of cdr, minimum 65%, better to be around 70%, which means max cdr rolls on every piece possible.