Burgeacle Elements: Terra, Gemstone, Enchanted, Lush This massive monster was sleeping one day and woke up a few hours later to find its back turn into a literal terrarium. Turns out it slept in a magical quagmire and inside of it was a tree stump, some crystals, and even a pair of monsters, and when it woke up, it found it had fused with all of them. As one would expect however, it used these new features to its advantage, and now it uses them to make music! Somehow.
@YelmutTheory made the sound
