In regard to the other two leaders, Nader Shah is pretty bland, almost terrible, and Suleiman is acceptable with his +15% Science and Culture when in a Golden Age ability. This ability alone makes him an S Tier Civ. In general, the consensus for the leaders is that Tokugawa is overpowered (OP), one of his unique features is that, in the base game he gets: International Trade Routes receive -25% Yield and Tourism, but Domestic Trade Routes provide +1 Culture, +1 Science, and +2 Gold for every Specialty District at the Destination. The Great Commander Pack contains three new leaders for existing empires, Tokugawa (Japan), Nader Shah (Persia), and Suleiman the Magnificent (Ottoman Empire). Also, the Leader Pass will be free for existing owners of the Civilization VI Anthology Edition on Steam, for anyone unaware.

As part of that, the Great Commander DLC has just been released for anyone who has purchased the Leader Pass. Developer Firaxis Games final update for The Leader Pass DLC for Civilization VI came out in November, however part of the DLC is a slow release of 6 different mini DLCs over time until March.

Swith civilization vi update