The format for November Qualifier is Historic Constructed
You can stay entirely domestic with ACE Grading, or you can send overseas to PSA who are the global market leader, and accept the additional cost and complexity that comes with international shipping
(2025-11-17) If a creature has +1/+1 counters and -1/-1 counters on it, state-based actions remove the same number of each so that it has only one kind of those counters on it
Mirrodin and Darksteel are predominantly artifacts, while Strixhaven more than doubles the usual amount of instants and sorceries
Ice Age Though the snow symbol doesn't appear on cards that you think would have it like Snow-Covered Mountain, few things say cold, snow, and ice like a snowflake
Who knows, but the cards were absurdly powerful in these events, and also absurdly fun to play with