Brokkos, Apex of Forever

All of the apex monsters are ancient, but Brokkos is believed to predate them all. The gentle giant roams the forests of Zagoth with a miniature forest of its own growing on its back. It is said that Brokkos experiences time differently from the rest of the creatures on the plane: its blinks take minutes, its breaths take hours, and its naps take weeks. But just like time itself, Brokkos is an unstoppable force. Once it starts moving, nothing can halt it, be it humans, monsters, or the land itself. It seems that Brokkos's movements coincide with the changing of seasons on Ikoria, though it's unknown whether Brokkos follows the seasons or the seasons follow Brokkos.