Quote Originally Posted by Alpha2099 View Post
In my current playthrough, I just picked up the second Enemy Skill in Junon, and I realized that you can't cast E-Skills on yourself to have the person learn them. What a shame, I was looking forward to two characters spamming Matra Magic like there's no tomorrow.
Yep.

There's also a learning limitation if you equip one character with two Enemy Skill Materia.

Let's say that Cloud has an empty ES Materia and an ES Materia with Matra Magic. If you go into battle and an enemy uses Matra Magic against you, the empty Materia will not learn Matra Magic.

However, if an enemy then uses, say, Flamethrower on Cloud, both Materia will learn it.