Quote Originally Posted by Dayala View Post
The whole point of that ability is to heal the target of synastry by healing other people in the party so that makes little to no sense in a solo situation. If you mean the healing boost you get from using it then I can see why but still not needed since Light Speed would basically be better to top yourself off in a soloing kinda thing.
Considering your priority as heal MT>Yourself>Everyone else, you could cast that synastry on yourself and get healed as you heal other people ensuring your survival. For soloing, the boost in healing is really what i had in mind - Not necessarilly to top yourself, but you could Synastry->Asp.Bene yourself and DPS longer.