"Hidden deep inside the birch forest, lays a horrible beast. The beast will remain hidden, but at the sound of an ender flute it will arise..."The Birch Lurker would look like a huge white tiger with green leaves,it would have deep blue eyes, huge white teeth, and black spots covering it.The Beast would be the next boss above the wither, and could only be summoned with a flute of ender. You coukd craft the flute with 1 birch plank in the middle, to stripped birch logs on the sides, 2 obsidian on the yop and bottom, 2 ender crystals in the yop corners, and shulker shells in the other corners. Right clicking the flutw, while in the birch forest would cause the battle to begin. A large roar could br heard as the beast jumped from the trees. He would have 3 main attacks, pouncing doing 5-6 hearts, root sprouts that trapped the player to the ground and could be broken with an axe or sword, and wing flapping that would send the player flying 6-7 blocks away while also dealing 3-4 hearts.The boss would have 1/4 more health than the wither.Upon defeat the mob would lay on the ground, as roots envelop it and would become a tall tree with a beehive and many flowers around it.If the player were to dig under the tree they would find a chest full of diamonds, eleralds, and one new item. Birch boot feathers, which could be combined with boots and would slightly increase the running speed and negate a little bit of fall damage. But there would be only one birch boot per chest.