Regular Rules Enforcement Level
Number of Swiss rounds and possible cut depend on the number of entries.
Current deck construction rules for the format are available on Wizards' web site. Note that this is a sanctioned event, and thus no proxies are allowed. Card sleeves are highly recommended, and the store usually has a wide variety in stock.
Booster packs from the store's inventory based on finishing position.
The prize pool is made up of three packs per entry, and the pool is paid out to the top half of the finishers. Guidelines of payouts by position can be found here.
These prizes may change over time -- though not without notice, if at all possible -- based upon player feedback and event history; the more people we can get playing regularly, the better the prizes will become!
If you have any questions or concerns, please bring them up on the store's forums. Alternatively, you can email the organizer. Also, we try to do unsanctioned (i.e. proxy-legal) Legacy testing at the store on Wednesday nights, helpful for tuning up your list before Sunday.
Thanks, and we hope to see as many of you there as possible!