Qi-Power

Qi-Power (気力) is the Dairangers' main power source.

Gokaiger
Qi-Power is the Greater Power of the Dairangers' Greater Power, which was granted to the Gokaigers by Ryo of the Heavenly Fire Star (RyuuRanger) during the return of the Black Cross King.

The Greater Power resurfaces later, as well as Ryo, and during the fight, the Gokaigers in GokaiOh accessed the power of Chi for the Gokai GoZyu Chi-Power Bomber (ゴーカイ豪獣気力ボンバー), where GokaiOh charges immense levels of Qi within it, then infuses the energy into GoZyuJin, then attacks (while being backed by GokaiOh) drill arm-first through the target.