Spiralling Tower Technique

This technique is devised by Kakashi Hatake as a way to reach 200 kilometers above Konohagakure. His original idea is to create an Earth-Style Wall to reach that altitude, but he doesn't believe he would have enough chakra to make it tall enough. For this reason he recruits Yamato to assist him. They practice all night to synchronize Kakashi's Earth Release with Yamato's Wood Release, finding a configuration that is structurally sound but that also will reach the intended elevation within the one hour they'll be allotted.

The Spiralling Tower originally works as intended, with Kakashi's earth pillar and Yamato's wood pillar entwining in order to fortify each other as they grow into the the sky. But a rainstorm begins shortly after they start, forcing Kakashi to spend additional chakra to reinforce the earth pillar against the rain and wind. The task eventually becomes too much for him and he loses sync with Yamato, briefly halting the tower's growth and potentially risking its destruction. Gaara and Kurotsuchi, whose assistance Kakashi requested the night before, arrive in time to assist, stabilizing the tower that has been created so far and adding a sand pillar from Gaara and a second earth pillar from Kurotsuchi to its continued entwining growth.

The Spiralling Tower ends up being a success, with the three-man team that was ascending it reaching their destination in time. At the conclusion of the three's mission, an impact at the peak topples the tower and causes debris to start falling on Konoha. Gaara attempts to use his sand to shield the village, but he has no additional chakra to do so. A separate team of six ninja assembled specifically to deal with this potential debris begins to repel the initial chunks of the tower, but they are quickly overwhelmed. It is ultimately the Seventh Hokage who destroys the majority of the debris, saving the village.