make obsidian turn to Molten obsidian when lava comes into contact with it, or if a molten obsidian block is next to it. will cause 0 damage to the player, but will throw them around like they are jumping to avoid the heat. if there is air next to the obsidian (NOT above) then it will create a lava flow. (lava acts as if the molten obsidian doesn't exist, and will flow through it) <-:obsidian: <-:Lava:<-
Molten Obsidian