601.3. Standard
601.3.a. Standard is a format consisting of the most recent 5-8 sets.
601.3.b. Each standard consists of the current year’s sets plus the previous year’s sets.
601.3.c. The current Standard consists of:
601.3.c.1. The Origins supplemental set contained in Proving Grounds (OGS)
601.3.c.2. Origins (OGN)