At the end of the day, they dont, as throughout Magic: The Gathering history, there have been many lands printed across sets where you can choose the one you need according to what your deck wants
Undermine Which would you like first, the insult, or the injury? What makes a flavor text memorable
The most relevant cards from this set include: Yveltal , Yveltal EX, Aromatisse, Xerneas, Evo Soda, Fairy Garden, Muscle Band, Professor Sycamore, Team Flare Grunt, Rainbow Energy
some people believe that Master Sets must include Promo Cards, Alternate Releases, Variations, and Error Cards to be considered a true "Master Set." Others argue that there are cards far too rare or expensive to be considered part of the set they were released with - for example, the "Pikachu Illustrator" card would be difficult to include as part of any Complete Set or Master Set
Additionally, Murkrow and Honchkrow can be used to stall