New Dark Troop to heal air troops

We're still lacking in numbers in the dark troops barracks, and they each seem to mimic a regular Troop but with a tactical advantage at the cost of dark elixir I.e minions are air archers, hogs are wall jumping giants. My idea is for a ground unit to heal air troops (maybe called a spellcaster) unlocked at TH10 to oppose the power of the max air defense and make air raids more feasible again. This Troop I think should have the same healing properties per level as healers but with much less HP, making it a vulnerable Troop to spam in with dragons or balloons as ground targeting defenses would take them out straight away, but used tactically could keep them alive just enough to clear all air targeting defenses and take a 3 star victory, would save having to nerf the max air defense
What do you think?