Riddles in the Downs

[Rumil]

Okay,

just a quick one as I didn't have anything in reserve. Shouldn't prove outrageously difficult (with apologies to The Prodigy...)


I'm a firestarter, angry firestarter.

At gates of doom I saw too soon,
The slaughter and disaster.

White from blue, no minstrel, true.
Torchbearer and light caster.

Ninth in line, renown is mine,
But student beats the master.

Guess on!