2021 Marvel Metal Universe X-MEN – Base BLUE Holofoil 100-Card Set #1-100 Achievement. Base BLUE HOLOFOIL ACHIEVEMENT (it was only available thru e-Trade). Cards are in Near Mint / Mint condition or better. Note: Cards were only available through ePack by trading 10 base cards for 1 BLUE Holofoil achievement! Comes from a Smoke-Free home. Refer to the photos (front and back) provided in the listing. Come from a Smoke-Free home. Base Cards are printed in the following 7 Levels. Level 1 – Base Holofoil Cards (common card; randomly inserted in packs). Level 2 – Base Gold Holofoil Paral. Lel cards (rare card; randomly inserted in packs, odds 1:4). Level 3 – Base Grandiose Parallel cards (rarer card; randomly inserted in packs, odds 1:18). Level 4 – Base Serial Numbered Holofoil cards (Pink #/75, Purple #1/1). Level 5 – Base Serial Numbered Precious Metal Gems PMG cards (Red #/100, Green #/10). Level 6 – Base Blue Holofoil Achievement cards (trade 10 base cards thru ePack for 1 Blue ePack Exclusive Achievement). Level 7 – Base Black Holofoil Achievement. 10 base Blue achievement cards. Thru ePack for 1 Black ePack Exclusive Achievement in a reflective deep gray/black color. Equivalent to 100 base cards and more rare than the pink #/75 and red #/100 cards! 6 cards per pack, 12 packs per box, 12 boxes per case.