- One of the six founding Matriachs of the Adepta Sororitas. Counts as a Primarch unit for the Crimson Fists.
- To the rest of the Imperium, she is known as the Liberator, the founder of the Order of the Sacred Rose. The one who conspired with the Custodes to remove Goge Vandire's tyranny over the Imperium.
- But to the Crimson Fists, she is known as Lady Arabella Mavuika Violetta de Lorena Maximiliana, the Phoenix. The holy patron of Aztlán, or as Rynn's World used to be called before Imperial intergration.
- She would be the last surviving member of the six Sisterhood Matriarchs, persumed martyred alone combating Heretical forces across the Eastern Fringe in the late M36.
- When the Great Rift engulfed the Ultima Segmentum, Rynn's World was besieged anew by both Ork and Chaos forces. It was then, true to her namesake, she resurfaced amidst the fires of war to save her home planet.
- Carries forth the "Firebrand", a blessed Spear (or according to some, a Broadsword) that can set ablaze any Daemon and heretic alike, and a Master Crafted Inferno Pistol, the "Phlogiston".
- Effective against most enemies. Can jump using her firery wings, causing knockback upon landing. Has access to a variety of abilities and can detect.