Riddle of the Last

I'll skip the formalities this time. Have at it! ________________________________________ Who/What am I? I am seen but thrice; or perhaps only twice. Either way, it is enough. When I appear, death follows close behind, swooping in on tarnished wings. But I do not determine my fate; he chooses when I shall appear. Or perhaps it is not him, but the other. The first a teacher, the second a student; the first kindling, the second a roaring fire. Who will have the final say? I shall determine. For if there is beauty in destruction, why not also in its delivery? [b]Hint 1[/b]: One. A motion, rapid as a lightning bolt. Two. Cracks and cuts, rings and echoes, one falling. Three. Rage, channeled through the sword. Four. Now you are in control. [b]Hint 2[/b]: Only in times of great need do I make my spectacular appearance. The bribers, the foundry of the dark, created my namesake. It has a dark twin, but that is another story. After all, this is not my tale, but yours. [b]Winner[/b]: Seagebs [b]Answer[/b]: "Yours, not mine," If you liked this riddle, and you can't wait to see more, check out the [u]Destiny Riddlers[/u] clan!