The Sequoia's handle is blue-grey with a bronze spike in its pommel and a red and yellow spike on its tip. The blade and counterweight are one in the same on this Axe Sword, a result of the weapon's peculiar shape. The Sequoia is shaped like a backward “S” that goes through the spike on the tip of the handle, curls over it—creating the counterweight—and then abruptly widens and curves in the opposite direction, creating the blade. The weapon is equally colored in red and black, and the edges are mostly red. The outer edge of both the counterweight and the blade is lined by silver spikes of varying sizes.
The Sequoia is the tallest and longest living tree on Earth, growing up to 115 meters and living as long as 3,500 years. The Holly Olive, also known as Osmanthus heterophyllus, is an evergreen shrub that is native to central and southern Japan. Like Lexaeus's other weapons, the Holly Olive's name is connected to traditional Japanese literature; the Holly Osmanthus is mentioned twice in the Kojiki, the oldest surviving historical record of Japan.
The Sequoia's ground combo starts with a quick, one-handed thrust that resembles a guard or block-like motion, followed by a one-handed upward diagonal slash. The same movements are performed a second and third time before the combo ends with a powerful, two-handed downward slam.
The aerial combo consists of a two-handed upward slash followed by a powerful, two-handed downward slam.