By this point, anyone who has seen Shen Sui duel would know that Shen Sui has already won this duel.
But even though Lak knows of Shen Sui, that's only because Shen Sui is on his target list. He doesn't understand Shen Sui at all.
So when Lak brazenly declared he would torture Shen Sui to death, Shen Sui could only find it amusing.
After releasing two Dragon Race derivatives, Shen Sui, with enough Soul Points again, paid 15 Soul Points to transform [Queen of Dragons Qishala] into [Star Abyss White Dragon Qishala].
At this point, it essentially announced Lak's death.
If it were a regular opponent, Shen Sui would have ended it cleanly, as fewer actions show respect to the opponent.
But Lak is different.
Shen Sui doesn't believe such a person needs much respect.
In fact, Shen Sui thinks that for someone like Lak, treating him in his own way is the highest form of respect.
