sentient ecosystem able to command all the living things native to its island body, manipulate its earth and plantlife, drain bio-energies from outside sources, possesses vast psychic power, and can shape humanoid forms for itself out of its own matter with tremendous size, strength, and resistance to injury
The original mutant homeland, Okkara, was split into Arakko and Krakoa following an invasion from Amenth. Arakko was sent to the shores of Otherworld millennia ago to protect Earth from further invasion by Amenth. A portion of Arakko returned in X-Men (5th series) #2, joining with Krakoa as the Arakko Coral. Following X of Swords, Arakko fully returned to Earth, but it and Krakoa chose to remain independent of each other. Arakko was later moved to the newly-terraformed Mars in Planet-Size X-Men #1.