You can sign up for the campaign between 14th July and 21st July! The actual event runs from the 22nd and should be a blast!
Despite giving us a choice of 496 pokemon to choose from (which do not need to have the blue pentagon!) the restriction list is quite large.
The prize should be worth the participation though! Cynthia's Garchomp.
Lv. 66
OT: Cynthia
Ability: Sand Veil
Moves: Dragon Rush, Brick Break, Giga Impact, Earthquake
What will you be bringing to the competition?