THE MINES!! To strong, good enough or to weak?

[Tribulation]

He could not have bought much else if he had that many mine kits, thus he should have been an easy target. The distance between single mines is high enough, it would be too hard to make good minefields with low-dmg mines if the distance was any higher. As for the number of mines: if it was limited, to 15 e.g., the demolisher must have a possibility to remove existing mines, like the tinker can remove his towers, because mines he put at his first cp might become useless later and prevent him from putting more mines at the place he fights later.