The Ulcerated Tree Spirit boss from Elden Ring returns in Nightreign. This giant snake-like enemy moves around the arena constantly, making it difficult to know when it’s about to attack. Keeping your guard up is a great way to avoid getting hit. If the Spirit roars, it’s a signal that it will perform a grabbing bite attack that can kill players, so roll away when it comes.
After reaching half HP, the Tree Spirit will enter Phase 2, creating a flame explosion around itself and dealing holy damage with its clawing and bite attacks. Stay near it and cling to its sides to avoid most attacks. Breaking its poise and landing a critical hit on its head will deal immense damage.