New walls / wall traps

Hello everyone, i´m an assidous clash of clans and gears of war player too! and i saw something in gears of war that i think will be fun in clash, and i think th9-10 don´t have enough walls with these recent updates and new buildings, so here is my idea... (don´t know if its ruled out or something)

This video shows incendiary grenades in gears of war, the way they work, i must say in that game you can stick them to walls and by now you´ll get me.

https://www.youtube.com/watch?v=5Ul4RNBe9n0

So i propose you give us some new normal walls, 15 more to th9 and 25 more to th10, and 10 new trap walls -Unlocked in th9- that would look like a normal wall but with some little fire spikes like lvl 9+ walls, the way you need to pay attention to know where these trap walls are.

Now i will talk about these trap walls characteristics:

They will trigger when a troop walks in its range, which i think should be 2 tiles, then like these gears of war grenades will do damage in time, for 7 seconds

Lvl 1:
Looks like a lvl 9 wall with fire spikes.

Cost: 1200000 each one
Hitpoints: 3200 (80% of a normal lvl 9 wall), i think they should have less hitpoints cause they would be OP if have the same hitpoints of a normal wall.
Rearm cost: 1500
Damage per second: 30!, i mean, they´ll burn!

Lvl 2:
Looks like a lvl 10 wall with fire spikes.

Cost: 3600000 (20% more than a normal one) each one
Hitpoints: 3200 (80% of a normal lvl 10 wall)
Rearm cost: 2000
Damage per second: 45

Lvl 3:
Looks like a lvl 11 wall with fire spikes.

Cost: 4400000 (10% more, think 20 is too much) each one
Hitpoints: 3200 (80% of a normal lvl 10 wall)
Rearm cost: 2000
Damage per second: 60

So, if you got it to this point i´d like you to tell me what you think, if something should be changed, or whatever you can tell me about my idea, thank you very much!