Arth

Earth and Ellie are a crucial ally team introduced during the Faudo Arc. Their ability is swords. Also, they have a natural ability which is the sword Arth used can absorb other mamodo energy when they get hit or touched.
Earth is a mamodo who appears like a living armor and descended from a long line of peacekeepers. He hopes that when he becomes the Mamodo King, he can write up laws that will bring about peace and stability.

(Source: Gash Bell Wiki)