Arcanum Sanctorum's October Pokémon TCG League Challenge is Thursday, October 29, 2026, at 3994 N. Oracle Road, Tucson, AZ 85705. Registration opens at 5 p.m. and closes at 5:45 p.m.; games start at 6 p.m.
Entry is $10. The tournament is Standard constructed, best-of-one Swiss with 30-minute rounds, and prizes scale with attendance. Each player gets a Play! Pokémon prize pack, and $5 of store credit per entrant goes into the prize pool for the top finishers. League Challenges award Championship Points toward a Worlds invite.
Players need a Pokémon Player ID and a completed deck list to participate.