BTD Battles Mobile - Which tower activates the special ability

In BTD Battles Mobile, when you have multiple towers with the same special ability purchased, which tower activates the special ability?

Edit: I figured I can test this in Practice mode (now that I found out how to make money in defense mode. And it appears the it goes by order of upgrading to Misdirection.


Abilities will be activated by towers in the order in which you place them.