No where between reveal a villain card and reveal a hero card does it say (or). This kind of leads me to believe that he can do both at the same time. Thoughts on this please

It supposed to work for both, I remember someone asked before when he was first and I think it was clarified this way

Of course, there aren't very many ways to get both hero and villain cards in the same deck to use with him, and two of them involve pairing him with his girlfriends (Qi'Ra and Leia (Boushh)), which is highly thematic.

The other two ways that I know of are to pair him with Bo-Katan, or just play draft, where the restriction preventing hero and villain cards in the same deck doesn't exist.