New troop Idea

The troop name is Enrager.
I was thinking about it, because of the healing spell and healer, so:
It has the same function of the rage spell, but it enrage the troops the same way the healers heals troops.
She's a flying unit.
hitpoint: 500
cost: 350 dark elixir
Increase troop damage 20%
Increase speed, 14
She could target air units, unlike the healer.
housing space: 15
Time: 15min
Movement speed: 20 (or more idk)
It has 2 levels:
Lvl 1 already written
Lvl 2: (Laboratory lvl 7, research cost 15000 DE)
Cost: 400 DE
Increase troop damage 25%
Increase speed 20
Hitpoints 600

I like this idea but feel it's not unique enough to be a dark troop