The Primeval Devil Authority!
Of all the parts of his bloodline Hal could outsource to all those in his camp, the authority that was his by birth was not one of them.
To be able or allowed to use the Primeval Devil authority was a privilege only the child of the Primeval Devil queen could enjoy.
Anyone else who tried to use the Primeval Devil authority besides Hal, even if they had been granted the opportunity either by the Devil queen herself or by Hal would have to pay a steep price.
The pain Artyom was feeling right now and would continue to feel for as long as he was branded by Hal qualified as a heavy price.
And to further highlight the importance and significance of what he was making use of despite not being a kin of the Devil queen, the pain was quadrupled whenever Artyom made use of the Primeval Devil Authority.
As he reached towards the third ability Hal had granted him, Artyom's legs shook as he was overwhelmed by the pain.