New DE Troop: Banshee of Rage

I know the idea of a Banshee has been proposed before, but it has been all about just attacking buildings with a scream. That is just an archer or wizard with different ammo. If the Banshee was used in a support role like the healer with a different function it could be a game changer. The Banshee should be a flying troop that does splash "damage" like the healer, but instead of healing, the Banshee is like a flying rage spell. The Banshee should be a dark purple almost doppleganger to the healer with a skull head and flowing hair with bat wings instead of bird wings.

Dark Barracks Lvl 6 Upgrade Cost: 3.5 million elixir/10 days upgrade time
Available Town Hall 10
Hitpoints of Building: 430

Banshee Lvl 1
Cost: 75 Dark Elixir
Cook Time: 30 minutes
HP: 250
Area Effect: Splash-3 tiles
Damage Boost: 10%
Speed Boost: 5
Duration: 10 Seconds (Unless Replenished by Banshee)
"Attack" Speed: Every 7 seconds

Banshee Lvl 2
Research Cost: 60,000 DE
Cost per unit: 90 DE
HP: 300
Damage Boost: 20%
Speed Boost 7
Duration and Attack Speed are the same

Banshee Lvl 3
Research Cost: 80,000 DE
Cost per Unit: 105 DE
HP: 340
Damage Boost 32%
Speed Boost: 10
Duration and Attack Speed the Same

These stats are far and away inferior to what the actual rage spell does because it only adding a little at a time instead of more than doubling the effect of the troop, but the trade off is that as long as the Banshee is alive and on the battlefield it can enrage the troops in play. It may seem a little OP but that is the value of dark elixir in my opinion. This is definitely a high level troop and I speak from a point of anticipation as a TH 8 when I say my goal would eventually be to play at this level. I think it would be really neat if this was implemented because all the Dark Elixir troops so far have been strictly offensive in an aggressive way instead of a support role.

Feedback is appreciated and trolling is ignored. Thanks!