I never really got into particles and simulation but have wanted to make lava ever since I Learning Blender Day 1, and here’s my attempt. I also felt like modeling a Demon’s Souls weapon called the Dragon Bone Smasher, which was greatly improved in the PS5 version.
I made a rocky texture using only nodes instead of painting textures over both the sword and base, and for the lava I tried to make a liquid as dense as possible and then apply a bunch of nodes for the lava look, taken from a tutorial.
Besides the lightning I used a Volumetric Scatter for a hot red ambience.