>>24931719Fairly certain that you need the Xerneas to be damaged first to heal it. There's a Jynx that can heal the active that will be easier for you.
But honestly, setting that card up is too much work when in the same expansion there's a fairy mon that can do 120 for a fairy and a DCE.
And everyone will laugh at you for using a non-Geomancy Xerneas. It even has less HP.