So yeah by all indication the Manchegan clan have the fighting strength of the Brujah combined with the blood magic of the Tremere. Though I would argue the Manchegan's hard blood techniques might beat the Tremere's blood magic due to 1) It's an inherent ability of the Manchegan clan kindreds get when they turned (even they ghoul equivalents are able to instinctively use it) instead of a secret technique that's only the higher ranking Tremeres knows. 2) hard blood might actually be a more flexible ability then blood magic since they can transmute it into a vierty of other materials and items (examples in game are: spiked umbrellas, spears, swords, clothing (usually masks), claws, oversized scissors that can absorb spelled blood to grow and of coures of a whole theme park the Canto takes place in along with the rides and attractions).