I've used clemency so many times, when i saw the healer is having a tough spot(I've made over 7k cures with it including getting 3.5k+ on myself on crits) So its kinda hard for me to believe its a useless skill and you never use it, if you never use it thats fine but don't say the skill isn't working, yes its a long cast time but keep in mind the CD is extremly low(2.5seconds) meaning you can basicly use it multiple times in combination with shieltron, a great skill once again.