To be real, Obito is possessing Kakashi here. Giving Kakashi the use of Mangekyou Sharingan, until Obito leaves when it's necessary. That's what he meant by temporary.
Anyway to the point, ever since Obito awakened Mangekyou Sharingan against the Hidden Mist ninjas, he used it masterfully at his first try!
He could phase through objects and use Kamui already, not to mention Mokuton pretty well.
Even right after he got both Mangekyou, he used an enhanced version of a Kamui Portal right away with no problems and needed practice.
Why should Perfect Susanoo be a surprise? Obito is clearly skillful when it comes to Mangekyou Sharingan.
Anyway to the point, ever since Obito awakened Mangekyou Sharingan against the Hidden Mist ninjas, he used it masterfully at his first try!
He could phase through objects and use Kamui already, not to mention Mokuton pretty well.
Even right after he got both Mangekyou, he used an enhanced version of a Kamui Portal right away with no problems and needed practice.
Why should Perfect Susanoo be a surprise? Obito is clearly skillful when it comes to Mangekyou Sharingan.