The game we are making will have elements of both MOBA and RTS. Therefore a lot of different abilities will need to be implemented for both the humans and the kaiju. To allow for easier abilities creation and variation we will be using the mixin design pattern to implement abilities.  I have been planning how I will implement the mixin design pattern. The current plan is to create trigger, effect, and targeting mixins. Once this system is implemented designers will be able to crate and test different abilities. I have also started planning how the character controllers will be implemented, so that they will work with the ability mixins.