The Karma seal was introduced right from the first chapters in the Boruto series.
However, the powers that this seal brings to the owner are still a `mystery`.
Power and speed
In recent manga chapters, we have seen Boruto having training sessions with his father.
Boruto surprised Naruto as he moved faster and his blows seemed much stronger than before.
Maybe the Karma seal is like the sage mode, when activated it will provide the user with great power.
Absorb Ninjutsu
Absorbing ninjutsu is one of the first revealed powers of the Karma seal.
In recent chapters we have also seen Kawaki also use this power to absorb attacks from Garou.
And this is truly an extremely powerful ability as it can help Boruto, Kawaki and others deal with the strongest shinobi with ease.
Amplified Ninjutsu
Ninjutsu amplification is a different ability from the above ninjutsu absorption.
And recently in the battle with Garou, Kawaki also used this move.
However, I wonder if Boruto and the others are capable of using this move?
Retaining Ninjutsu?
As we know, the Karma seal can help its owner absorb ninjutsu and even amplify it to counterattack enemies.
We have seen that Boruto once absorbed Kawaki and Kashin Koji’s jutsu.
Although we have not yet seen this ability appear, it is certain that the author will soon reveal them in the near future.
Self-healing from wounds
Self-healing is a new ability of the recently introduced Karma seal.
While fighting, Kawaki turned his hand into a gun and told Boruto not to avoid it but to try and absorb it.
However, this ability is still unclear, we still do not know to what extent it is.