Sanzu Death Cannon is an attack used by Death the Kid only in the Anime adaption. It lacks an official name, however, it appears as a major upgrade to Death the Kid's original Death Cannon attack when affected by The Lines of Sanzu.
Sanzu Death Cannon is an outrageously powerful Soul Resonance attack. It takes it's form out of the original Death Cannon, and evolves into it's true form in bright energy fluxuations. The Sanzu Death Cannon can only be used upon the connection of all three Lines of Sanzu, which means the technique has the power of a Death scythe when Resonating with a full-fledged Shinigami. The technique is unique to Liz and Patty Thompson, and it's magnitude is so immense that it has the firepower to almost annihilate a Kishin.
Sanzu Death Cannon appears as two huge cannon guns made of what appears to be pure gold. Both guns are so large that Death the Kid cannot hold them up alone, so the cannons are secured to the ground by two large stands that take the shape of Shinigami's mask. In this state, Liz and Patty combine as a single Weapon by a large beam that binds both guns between them, however, this doesn't mean that both fire the same version of their Meister's Wavelength like they do in the original Death Cannon. Rather, upon firing, Liz fires a green version of Kid's Wavelength while Patty fires a pink hue.