Chapter Name: "The Wyrm's Fury"

Chapter Origins: Strategic Prognostication
Founding Date: 4th Millennium
Progenitor:Traitor Blood Angels
Demeanor: Cleanse and Purify
Gene Seed Purity: Flawed
If Mutated, what is the result?:Progenitor-specific (Hyper-stimulated Omophagea - Eat the enemy!)
Mutation Chance: (50%)
Chapter Flaw: We Stand Alone - The Chapter is either distrusted for some reason, or shuns contact with others.
Chapter Legend: Chapter Master
Deed of Legend: He figure led an action against an Eldar craftworld, boarding it and inflicting grievous casualties before withdrawing.
He and his Chapter are especially hated by the pernicious Eldar, for whom the event is still fresh and raw.
Chapter Homeworld: Fleet-based
Main Ship: Space Hulk
Organization: Unique Organization
Doctrine:  Close Combat
Characteristic Chapter Training: The Holy Bolter: The chapter undertakes drill with the bolter and meditative prayer daily, and may combine the two.
Chapter Restriction (Can't Field): Assault Marine (Jump packs can still be issued)
Special Equipment:Bestial Companion (Battle Grox), Preferred Fighting Style (Mark IV Ultra Pattern Bolters)
Chapter Beliefs: The Emperor Above All
Strength:Under Strength: The Chapter is recovering from a defeat or accident that occurred several decades ago, or has recently suffered heavy, but not irrecoverable losses. It is probably at a minimum of half strength, and should return to nominal strength within a decade.
Chapter Ally: Chartist Captains
Chapter Enemy: The Eldar

Chapter Master: Sealgair Réalta
They dub their grox their "cúnna an impire" or hounds of the empire.
Irish theme and naming scheme.
Name of their Hulk "The Monument of Sins" mostly ship shaped, as opposed to the more meteoroid hulks.