Adcended but cannot find "Infernal hounds," skill.

I've tried adding it from the character points screen. I've tried using a skill gem. I cannot figure out how to add this skill and I cannot find it anywhere.

When I beat the challenge the first time, I did but my minions were still alive and killed the boss. Did I brick my character somehow?

NVM! I'm an idiot.

It was added automatically and I hadn't activated it.