Heal not. ---> Kushina Skills Full / Heal Banned !!! no Kushina skills !!!

Fūinjutsu:

Coming from the Uzumaki clan, Kushina had great skill and knowledge of advanced Fūinjutsu, which she later taught some to Minato. From her clan, she inherited sealing techniques to seal a Bijū within a target. This seal can even be duplicated.

With his chakra, Kushina was able to materialize Adamantine Sealing Chains, which were strong enough to contain and subdue Nine Tails, both in the real world as well as in conjunction with his seal within his subconscious. It could also form a barrier in conjunction with these currents, preventing all outside parties from entering.