Vertical Excavation

Standing atop the frozen tree, Arthur used the Key Spear to begin the excavation.

"Rapid Trust!" Using the skills made the process a bit faster and also allowed him to inflict more damage to the ice.

~CLINK~CLINK~CLINK~

At first the spear bounced off the surface, but after a few hits it started to create small dents in the ice which eventually expanded to become larger cracks. 

~CRACK~CRACK~CRACK~

'I should focus on expanding it.' Arthur knew instead of targeting a wide area, it was better to simply focus on one crack and let the impact spread.

As such, he simply used the spear and kept on hitting the narrow edges of the crack, making it spread more and more. He did thus until he couldn't reach the top limit of the crack. But this didn't mean that he had to stop.