It saddens me greatly that we must take arms against the peoples of the galaxy. By their deaths they deny themselves the liberation that is only to be found in total surrender to the Great Good.
The burning knight( I need to find out how to say burning in Tau) is a Shas’el of the Sa’cea Sept who has burnt lungs as a result of a chaos marine attack that killed his father and the rest of the team, his father being the shas’ui leader. His lungs being burned crippled him making him have to carry a backpack oxygen supply. He was in service for three years and a council of his leaders and ethereals decided that getting crisped and living was enough to say that he past the test of fire. So they gave him a crisis suit so he could continue fighting. He quickly become a Shas’el and has proven himself time and time again. It is now time to be put in the ultimate test.
P.S. I was thinking because the chaos marines attack for a device that gave the user the power of the warp, do you think that I could make the guy go skull knight every once and a while due to the device exploding right next to him and his haunted past? The Gue\'vesa followers of Khorne killed my team, my father and burned me when i was a Shas\'la.
Now I am a Shas\'el. I strive to end the followers of Korne. The fire that burned me still burns in the deepest place in my heart. It forever shall burn. I am now known as the Burning knight.
Not sure what you mean by the Skull Knight thing but if it has anything to do with the Warp then now. Tau almost don't even register in the Immaterium.
as a result of a chaos marine attack that killed his father and the rest of the team, his father being the shas’ui leader. His lungs being burned crippled him making him have to carry a backpack oxygen supply. He was in service for three years and a council of his leaders and ethereals decided that getting crisped and living was enough to say that he past the test of fire. So they gave him a crisis suit so he could continue fighting. He quickly become a Shas’el and has proven himself time and time again. It is now time to be put in the ultimate test. 
