Pokémon Shuffle Version 1.1.3 is available for players of the game and the patch adds the Mega Lucario Competition again as well as Kecleon, Relicanth, Girafarig, Shuckle and Spiritomb Daily Stages. The Mega Lucario stage will be available to play between May 18th, 2015 at 6:00 UTC until May 25th, 2015 at 05:00 UTC. The top 30,000 in North America, top 15,000 in Europe and top 65,000 in Japan to qualify for the Lucarionite. Players are awarded a Lucarionite, the Mega Stone needed to Mega Evolve Lucario. All players that tried this stage are awarded one Jewel if they don't get the Lucarionite and all that had it from the previous competition get 2 Jewels.

5 new daily stages were also added. Girafarig, Shuckle, Kecleon, Relicanth and Spiritomb can be played between May 18th, 2015 and June 6th, 2015 on a daily rotating basis, Monday through Saturdays. Details of these events have been added to our Pokémon Shuffle Special Event page.


Source: http://www.pokemon.co.jp/ex/poketoru/news/post.php/42/ and http://www.pokemonshuffle.com/en-us/connectivity#lucario-launch