Magma Wyrms from Elden Ring return in Nightreign. These large dragons have rock-hard bodies, making their head the only weak spot, and fight primarily with the lava they spit from their mouth and the giant cleaver sword.
Attacking its rear legs from behind its the safest bet during the fight, as most of its attacks do not reach there. The Wyrm’s animations are slow, allowing players to strafe around it. However, this boss can charge at players and cover the floor in lava, so be mindful of your positioning.
The Wyrm can stand on its rear legs and slam its sword beneath it and in a 360-degree angle around, so run away if you see it standing up.