Energy Absorption Techniques
After looking at its design, the Blade of the Star Tropper was very tempting to Tyrion. The only problem was that it was too expensive. In fact, it was the most expensive of all! Following that, were the gun recommendations.
Hawkeye blood demon art: Uses genetic forces to enhance eyesight ,while gradually stimulating the eye's nerves, pupils etc., allowing the practitioner to see further and clearer. It's worth 10 million death points.
As for the Sonic Eagle's Revolver, it was one of the thermal weapons that combined laser weaponry and metallic bullets weaponry. It was similar to a revolver pistol, except that it could use metallic bullets, and after finishing the bullets, it could absorb 'dust', giving it the ability to then shoot compressed energy bullets instead.