The TREE ENT is the dark brother to the wall breaker or jump spell but with benefits.

-The TREE ENT is a stationary troop that when dropped begins to put out a system of roots and vines that can grow over walls allowing troops access or damage buildings lightly.

- The roots are stopped/killed when shot by anything (low hp) otherwise they continue to grow outward from the tree ENT at a slow pace.

- If the roots should encounter a defense tower or building, they damage the tower lightly until stopped/killed, but discontinue growth until the structure is gone.

- if the roots encounter a wall, a vine grows over the wall, allowing access.

If the source (the dropped TREE ENT) is destroyed the whole system of roots collapses. (For example by a released skeleton trap or clan castle troop.)

I believe this troop would bring new defensive life to the little bombs, as the upgraded damage from one could potentially be enough to stop it. It would offer an alternative resource for ground armies to bypass walls where defenses can be tanked or destroyed. It offers more interesting attacking possibilities than a wall breaker or jump spell since it can damage buildings over time.

upgrades could potentially be a second or third set of roots growing from the TREE ENT.