Revision - Mechanics - Add Empowered and Maximized metamagic to Heal spell

Since the "Heal" mechanics changed and treats 10 hits per level, not all hits as the original spell, I think it need to add to this spell matamagic Empower and Maximized. Realization by a fixed percentage, for example +20% Empowered and  +50% Maximazed, either through the added value of healed hit points +2d10 Empowered  +5d10 Maximized.

Perhaps metamagic will only work in the presence of a priest "Heal" domain. In this case, metamagic not be available for druid, that in general is correct. Druid - not a party first aid kit =)