Just to make sure I've done this right. (This is the way I have them set up already. I went over everything and double checked to be sure.)
Under Animation Settings for the ability I've checked the Animate box and added an animation.
For the Battle Event I selected a battle event I made titled, "attack no calculation". Chance is 100%. I've checked the "Turn Based" box for Perform In. And I've left all of the other settings as they are.
For the "attack no calculation" event.
It's a battle event.
For event settings I've enabled "Auto Damage Dealers" and "Use Main Camera". I've added no prefabs or audio clips.
I have only one node, it's a "Combatant Animation" node.
It is enabled. Object is set to "Actor", Actor is set to "User". No child object. Time between is 0.25 seconds. Wait between is enabled.
Under Animation "Wait" is disabled. Animation type is set to "Attack".
There are no additional nodes.