New Dark Troop Ideas

New Troops
So the latest troop created was lava hound. It's housing space 30 hinting the next will be 35. Since the last unit was air it only makes sense to do a ground troop. Here are a few ideas I have come up with.
Dark Knight:
Housing Space: 35
Attack Type Melee
Targets: Single
Favorite Target: Royalty (BK&AQ)
Special Ability: Dark Knight could take 1/2 damage from archer towers and xbows because of his armor.
Alternative Idea: Becomes enraged when in combat with royalty.
Another possible Idea.
Fire Lord:
Housing Space: 35
Targets : Multiple (splash)
Attack Type: Ranged
Mobility: Low
Favorite Target: Inferno Towers
Special Ability: Recieves 1/2 damage from inferno towers.

infernos already got enough nerfed so the halve damage from an inferno is something not many th10s would like my guess but nice idea over all :)
troops with a goal are fun

The Fire Lord would be a low dps tank.

You shall say the cost and the level of the th to unlok them.