You can unlock it first at town hall 7. It looks like a wide wizard tower with a large, flat top and a dragon perched on top. It costs 800,000 gold to unlock at first, and the dragon's appearance changes every 2 levels (levels 2,4,6,8,10) to the next dragon levels skin (so at level 6 the dragon will have a level 3 dragon skin). Here are the upgrade costs: level 2, 1.2 million, level 3, 1.6 mil, level 4, 2 mil, level 5, 2.6 mil, level 6, 3.2 mil, level 7, 3.8 mil, level 8, 4.8 mil, level 9, 6 mil, and level 10, 7.6 mil. (Tell me if you think these prices should change). Upgrades up to level 3 are available to town hall 7, Upgrades up to level 5 are available to town hall 8, Upgrades up to level 7 are available to town hall 9,and the rest are available to town hall 10.
There are 2 ways to defeat this defence. You can kill the dragon, whose hit points are the same as the level of dragon he represents, or destroy the tower, which has the same hitpoints as the wizard tower up until level 9, where it's number of hitpoints is 1,100, and at level 10 it has 1,200.
It has the same range as an archer tower, and once enemy troops are in range, the dragon will fly off of it's perch and attack troops exactly like a normal dragon would, and has the same stats again, as whatever dragon level it represents.
The perch's appearance changes with the dragon, with it starting as the same colour as a level 1 wizard tower, then changes to a darker gray at level 2, gains a couple of thin lava streams coming down the sides of the tower at level 4, The streams get wider at level 6, at level 8, a grate appears in the middle of each stream, with the lava parting to the sides when it hits it, then forming back together beneath the grate, and finally, at level 10, fire starts billowing upwards out of the grates.
You also only get one of these throughout the entire game (tell me if this should change as well).
P.S: sorry that this is so long, just wanted to give a clear image of this idea 😃

