Arcanum Sanctorum holds its quarterly Pokémon TCG League Cup on Sunday, October 11, 2026, at 3994 N. Oracle Road, Tucson, AZ 85705. Registration is open from 10 a.m. to 10:45 a.m. and play starts at 11 a.m.
Entry is $20. The format is Standard constructed, played as best-of-one Swiss rounds of 30 minutes, with a best-of-three top cut using 75-minute rounds. League Cups award Championship Points toward a Worlds invite, and standings-based points depend on the number of players.
Every player receives a Play! Pokémon prize pack. The store adds $15 in store credit per player to the prize pool for top finishers. A Pokémon Player ID and a deck list are required to enter. The store allows outside food and drink but asks that it stay away from games in progress.
The event is listed on the official Play! Pokémon event locator.