The top layer of his dagger was covered in semi-sword energy, but to deal damage, Rishi needed aura to be at the top. He started thinking of many solutions before a simple thought came to his head.
What if I create tiny holes on the vessel made up of semi-sword energy? Will my aura also come out as water comes out of the holes in the bucket?
Rishi tried it, and his theory worked, but not as he had expected. Only a small amount of aura came out of it before it disappeared due to not having any mana for survival.
The solution to this problem is very simple: Rishi just needed to add some mana to the surface, which will help the aura survive.
He tried it, and as he had thought it worked, his whole dagger was now covered in a black, flame-like aura.