Rynn's Might was a venerable Land Raider known throughout the Crimson Fists Space Marine Chapter for its invulnerability and fierce Machine Spirit. During the events of the Rynn's World Campaign, Rynn's Might forever entered the Crimson Fists' Chapter legend. Narrowly escaping destruction in the epic explosion that reduced the Crimson Fists' fortress-monastery to rubble, the venerable Machine Spirit of the 'Might engaged in a deadly campaign of raid and counter-raid against the invading Ork forces, fighting until its Bolter ammunition was exhausted and the powers cells for its twin-linked Lascannon expended. Only then did it allow Orkish forces to approach, going so far as to lower its boarding ramp to entice the Greenskins into its troop bays. When it could contain no more of the green flood, the Land Raider's Machine Spirit vented its plasma waste into its own hold, triggering an explosion which destroyed both the Land Raider itself and a significant number of Orks, including a Warboss.
- Codex: Space Marines (5th Edition), pg. 81