Yes, but this is the new attacks for teammates thread. There's separation from enemies and their attacks and teammates and their attacks for a reason. While it's a nice thought to be able to use an enemy's attack against them, it's nice to have enemies that present their own unique challenge, as long as allies that are unique from the enemies.
That makes me think of an interesting attack, though I'm not sure how well it could be used, it may be difficult to implement (I have ideas on how I could do it in C++ or something, but I don't know AS2-3). Anyways:
How about an attack that is not an attack per say but an ability. Like the thought of feedback and vengeance, using the pain recieved from the enemy to hurt them and heal yourself, except that it actually mirrors their attack. The last attack performed on that character would change whatever slot the mirror attack is in to the aforementioned attack. It could even be used to mirror an ally attack/boost.
The way this technique could be learned is by some one very adaptive to the Gift. It could develop from heightened levels in Vengeance/Feedback and also when the character has mastery of more than one element.
Another tangent I've found: Chameleon. a crafty psy could trick the enemies into believing that he is one of them, if only for a turn. If possible, I'd say this move would need a "cool-down" so it is not abused.
