A new buildings: traps master and energy cube prison

This is the building where you can build a new traps like energy cube prison.
When the troop is in the range trap eject from underground like tesla and it catch the troop/s. Defensive buildings can atack the troop. The troop can escape when he destroy
the energycube from inside. The trap don't attack the troop inside.

What are it’s stats? How many troops can it capture? How many hos does it have? What TH is it built at? How many levels can it be upgraded, and how does that change its stats? Does it only capture ground trooos, air troops, or both?

Please flesh your idea out a bit more.

Thank you

Level 1
Can capture 3 troops
Hp: 100
Th: 8
only ground troops.
Cost 100k gold
Level 2
Can capture 10 troops
Hp: 300
Th: 8
only ground troops
Upgrade cost: 500k gold
Level 3
Can capture 15 troops
Hp: 600
Th:10
only ground troops
Upgrade cost: 1mln gold
Level 4
Can capture 20 troops
Hp:1000
Th:10
only ground troops
Upgrade cost: 2mln
Level 5
Can capture 30 troops
Hp: 2000
Th: 11
ground and air troops
Upgrade cost: 5 mln