Clan Blood Spirit was left tottering by the vicious fighting on York, their long held isolation broken by the Star Adder assault.
In a bid to overcome their enemies, Khan Schmitt ordered her techs to design an assault omnimech that can compete with any in clan space.
They came up with a stunning design, the Defiler. Costing only 50% of a Dire Wolf, the Defiler can pack almost as much weaponry, and is also much more durable. Strategically speaking, its appearance enabled the Blood Spirits to gain the upper hand.

Unwilling to use the expensive and hideously vulnerable XL engine on their new omnimech, the Blood Spirits had to resort to other means to make the mech competitive.
By using endo steel and ferro fibrous armor, they actually managed to get close to the Dire Wolf's pod space of 50 tons. By keeping the number of heat sinks in the chassis to what was internally contained in the engine itself, the Defiler actually has a larger pod space than the Dire Wolf!
The primary configuration is a deadly long range slugger, with gauss rifles and large pulse lasers, along with a ATM rack to provide firepower at all ranges.
The alpha variant uses jump jets, a targeting computer, and pulse lasers to create a frightening behemoth that has destroyed many a Star Adder mech, even with green pilots at the controls. This is the singularly most feared assault mech in the Blood Spirit touman.
Beta configuration employs ATMS and pulse lasers in a devastating array to savage all enemies, while gamma mounts a super heavy autocannon for close up work.
Delta uses 6 LRM 15 racks for incedible long range punch, backed up by two ER PPCs when the missiles run out, or when enemies get close. Epsilon uses a mix of large lasers to pummel its enemies at selected ranges.

Defilers have been spotted in all Blood Spirit units, and they have also started offering the mech to some selected clans, most notably the Cloud Cobras, known to be Star Adder allies. The Fire Mandrills and the Goliath Scorpions have also received a few in exchange for mineral resources, as well as promises to exert more pressure on the Star Adders via continued Trials of Possession for Star Adder territory while its attention is fixed on the Blood Spirits.