Keep an eye out for a bevy of PMG (Precious Metal Gems) and autograph parallels! Additionally, collect the 97-98 Retros, a 50-card design variation featuring the top rookies from the Base Set. Each card in this collection sports a unique background featuring original artwork from the 1997-98 Metal Universe Base Set! Collect the Skybox Premium Prospects and 98-99 Skybox Premium Prospects sets featuring the top 2021-22 rookie prospects. The latter is a design variation inspired by the 1998-99 Skybox Premium Rookies - Star Rubies set. Look for low-numbered and/or autograph parallels of both sets.