Gem Barracks!

I proprose an idea, a barracks that has troops that cost gems to train! This benefits players and SuperCell because we get more troops and using gem troops may cause people to want to purchase more gems. I think personally that this barrack should be unlocked at Town Hall 8, and cost 500 gems to purchase. I can start you off with a few troops ideas for the new barrack:
Gargoyle: Can only take damage while it's moving, for when it stops it becomes stone! The squishy but indestructible gargoyle can fly to its target at the expense of pain reception. It shouldn't have much health, for it can only get damaged for short periods of time. My opinion is that it should cost 5 gems each and take 5 minutes to train.
Dragon Tamer: The Hog Rider is baci with a twist, he's riding a dragon! This troop can deal damage in similar ways to a Hog Rider and a Dragon, but the Rider throws his hammers within a 10 tile radius. Also, when the dragon dies, the Hog Rider becomes it's own troop, only it moves slower than a normal one and can't jump over walls (without the assistance of a jump spell). These awesome troops should cost 30 gems each and take 17 minutes to train.
[Username]: This brilliant troop named after its host does not have an AI, but instead is controlled by its leader. A player can tap on a building to set it as its target. He can also switch between a missle launcher and a fist of fury. The troop appears as a giant robot, similar to the Titans in the game Titanfall, and has a very slow movement speed. Every [Username] placed follows the same command. This troop should cost 50 gems each and take 30 minutes to train.
Cleric: Ever wished your healers could target sky troops? Well the cleric can! Being a healer on the ground, the cleric can only blast healing orbs onto flying units, but has more hit points than the healer does. The Cleric should cost 2 gems each and take the same amount of time as a healer to train.
Bald Eagle: With a patriotic hat upon his head and an American flag at hand, the bald eagle will do anything to destroy the Eagle Artillery. He may be small, but with cloning technologies he finds a way to bombard his biggest fear. Once done and gone, all remaining Bald Eagles shall plant their flags in the destroyed Eagle Artilary and run around the village as decoys.
I hope you take my Gem Barracks idea into consideration, and if not at least take away a new idea for a troop. Thank you for your time.