Board Thread:Questions and Answers/@comment-192.180.226.174-20161207124528/@comment-4795804-20161207151117

Hi,

It depends on what items you have:
 * Most of items have a passive effect, so they work permanently.
 * Items such as Anti-Camo Dust must be activated manually. You should see the ability button on the same place where towers' abilities can be activated.
 * Boss abilities can be activated only during boss fights.