since we don't even have basic info in the forum post, here you go:
2v2, team size 5, country teams. 2 teams if country has at least 7 players.
rank 1500-4500
Dates
Registration: October 10th until October 23rd.
Qualifiers: November 5th until November 6th.
Group Stage: November 12th until November 13th.
Round of 16: ...
Grand Finals + Loser's Bracket Grand Finals + All-Stars: December 17th until December 18th.