Centered on the user, they replace the terrain with lava at a rate of a square meter/second with a maximum radius of around half a kilometer. It acts like normal lava, with the exception that it doesn't affect inorganic material standing on it and the heat doesn't extend further than ~10 cm from the surface. This pool goes down extradimensionally about 10 meters. The user is immune to the heat, and instead grows stronger when surrounded and submerged in lava.