Burning Tree

Boss Fight. At the start of combat, the creature rolls twice for the initiative, taking two turns per round of combat. At the start of each round, the creature must reroll for initiative once and replace one of its turns with the new result.

Bloodied Resistance. Upon taking damage that would reduce the creature to 0 hit points or lower, the creature returns to full hit points, and the creature immediately ends all negative conditions on itself. Once this feature activates, it cannot activate again until the creature takes a long rest. This effect can occur even when taking normally lethal damage, such as from power word kill

Tactics Change. When Bloodied Resistance activates, the Cursed Tree becomes a Rot Tree, or if Bloodied Resistance is activated by fire damage it becomes a Burning Tree. This determines which abilities it uses.

Multiattack(Burning Tree only). The Burning Tree makes 2 Slam attacks.

Slam. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) fire damage.