Because Earl Yury had no "wounds."
The Divine Art "Eternal Youth," which required close contact with a wound to use, was obviously infeasible. However, this was originally equivalent to a Divine Art on the "Healing Spell" level, and belonged to the lower-tier skills that the Healing Profession wouldn't use anymore after the early stages, unless they truly ran out of mana.
Annan was still using this Divine Art simply because he would never play the role of a healer—Considering Earl Yury flying in the sky, Annan immediately flipped through Silver Baron's Divine Art list and exchanged five Holy Light Sigils for the most aggressive healing Divine Art that seemed useful early on, "Greater Healing."
