Plus the new expansion releasing in September needs the Taken King expansion as well.
Destiny: The Taken King Legendary Edition includes Destiny, Expansions I and II, and The Taken King at one great price. It also includes a character boost to get you immediately battle ready.
Includes:
Destiny: The Taken King
Destiny
Expansion I
Expansion II
Level 25 Character Boost
April Activities Update: New Challenges and Rewards