Darth Sidious was more renowned for his mastery of the dark side of the Force, but when he finally showed his skills with a lightsaber, he could easily vanquish most opponents. Part of this was thanks to his use of the rare and dangerous Form VII, Shii-Cho. This form channeled the user's rage and passion to tap into devastating strikes and unique movements. Yoda and Mace Windu were the only Jedi who could really challenge Sidious in a fight.