Kamikaze troops

There should be a troop similar to wall breakers but instead of breaking walls it attacks defenses that are able to jump over walls. Tell me if i should change anything

Lvl	Damage	Cost (DE)	Upgrade cost (DE)
1	100	50	10,000
2	250	75	20,000
3	500	100	23,000
4	740	120	27,000
5	1000	150	30,000

Troop takes up 3 spaces

Have you determined the spaces the troop will take up?