Of course Pokémon are set for battle!
http://www.nintendoworldreport.com/news/37095/pokemon-set-for-super-smash-bros
A number of Pokémon have been confirmed for use as assist items in the upcoming Smash Bros. games.
One of the new features for the Pokémon items is use of the Master Ball. With this item, you'll be able to use legendary and more powerful Pokémon for use in battle.
Pokémon that were included in the Nintendo Direct are Kyruem, Vicinti, Staryu, Fennekin, Xerneas, Kedeleo, Melotta, Entei, Palkia, and Deoxys.
