Firkrann was a Force-attuned Shard Jedi known as an Iron Knight, who used an FLTCH-series battle droid shell as a vessel.
Jedi Master Aqinos instructed Firkrann despite the absence of Jedi Council authorization. Similar to numerous Iron Knights, Firkrann adopted a lightsaber crystal name for himself, which mirrored his link to the Force and his crystalline form. In the fungal woods of Xagobah, he met his end during a battle against General Grievous.
- " Unknown Soldier: The Story of General Grievous " — Star Wars Insider 86 (First mentioned)
- Endnotes for The Story of General Grievous, Part 2: The Knight Slayer on Only Sith Deal In Absolutes! — Abel G. Peña's StarWars.com Blog (original site is defunct)