(Party) Festive Unifier Siblings

Lore
Hello! Congratulations, Hero! ...Sorry, did I surprise you? I might have been too ecstatic... "But it's just not right if we don't get excited, okay?" "Thanks for all the fun on this long journey! Keep praying for the everlasting fortune of Neotellus! Now, let's go celebrate! Happy 3rd Anniversary!"

Acquisition
Obtained through a ticket received on day 60 of the 3rd Anniversary 60-Day Login Promotion

Name origin
?

Additional Info

 * Evolves with (Play) Festive Unifier Siblings.
 * Stronger Version of the Festive Unifier Siblings, which could be obtained alternatively through the ticket and which evolves into (Jamboree) Festive Unifier Siblings.