I think that is good.

Mythic Keystones are special items that will allow you to start a Mythic + Dungeon. You can get a mythic keystone using the PRO fcarry.com.
This will save you time and won't take long to complete the Mythic dungeon. But you'll be in the game and have a cool gaming experience

If you do not have a Keystone, there are three ways to obtain one: Complete a Mythic dungeon to receive a level 2 Keystone. Participate in a Mythic+ dungeon using another player's Keystone to receive a level 2 Keystone.