Cobbled Deepslate Generator

Add a new form of lava found below Y: -11 called liquid magma, which does double the damage of normal lava if stood in. If liquid magma flows into water it creates cobbled deepslate like how if lava flows in to water it makes cobblestone. Allowing for cobbled deepslate generators. This liquid magma could also be used for things such as bastions like the treasury bastions where all the loot is in the middle surrounded by lava, which is what would be replaced with the liquid magma.