From their website:
The monstrous creation called Sturm and Drang is proof of Dr. Arkadius’ mad genius. The key to this breakthrough was placing two strong wills in opposition. Psychic feedback crackles between their minds, driving them into a battle frenzy of escalating power. Engineered to dominate and subjugate, the pair have perfect command over the war hogs of the farrow and can unleash magic of mind-rending power and explosive force.