Dragon Slave is one of Lina Inverse most powerful spell.
Dragon Slave was created by legendary sorcerer Lei Magnus, It's the most powerful black magic known in the series. Originally called Dragon Slayer, but after years the name has degenerated to its present name. The spell invoke the power of the Ruby-Eye Shabranigdo the Dark God of the Red World
One who is darker than twilight
One who is redder than flowing blood
Buried in the flow of time
In thy great name,
I hereby pledge myself to darkness
Those who stand before us in our way
All those who have become fools
Merge your power and mine
To grant destruction equally to all!!