1 ⇒ Adamantine Sealing Chains
The Adamantine Sealing Chains is a fuinjutsu used by members of the Uzumaki clan.
This technique moulds the user’s chakra into extremely durable chains which can be used for several purposes, such as physically restraining or directly combating their targets foes even as powerful as a tailed beast. According to Orochimaru, these chain’s could also be used to bind the chakra, completely neutralising them. Using her chain’s, Uzumaki Kushina could also erect a barrier strong enough to prevent anyone or anything from entering or leaving the perimeter defined by the chains. The barrier was very durable, as Sarutobi Hiruzen (Third Hokage) stated that there was nothing anyone could do to interfere with what Minato and Uzumaki Kushina were doing once it had been erected.
These chain’s also made up her seal, completely pinning the fox down with several spikes in her own mind. Even while near death, Uzumaki Kushina was able to use these chains in the physical realm to restrain Kurama, enabling Namikaze Minato to use the Dead Demon Consuming Seal.
After Namikaze Minato sealed a portion of Uzumaki Kushina’s chakra inside of her son Uzumaki Naruto, Kushina was able to manifest a weaker version of this technique through Uzumaki Naruto. In conjunction with her special chakra, Uzumaki Kushina was able to temporarily restrain Kurama in Uzumaki Naruto’s subconscious.
2 ⇒ Dead Demon Consuming Seal
The Death Reaper Seal is a seal developed by the UZUMAKI CLAN to call the power of the Shinigami After the hand seals are performed, the user’s souls is partly separate from their body and suspende behind them. Behind their souls appears the Shinigami, which restrains their souls with its hair. Only One the summoner is able to see the Shinigami at this point. Eventually, the Shinigami wrap its left arm with prayer chants and beads unintelligibly until a Cursed Seal appear on it’s arm. It then drives its arm into the summoner’s souls, those allowing to the summoner to call upon the Shinigami to seal a target.