It could be Base Set booster boxes with some legitimate packs on top and some resealed ones underneath, which is not an uncommon occurrence
There are multiple occasions where you might be using cards for several battles, learning through trial and error, before the game pops up a helpful window to explain exactly whats going on
My go-to inner sleeves are the Vault X Exact Fits
But this is the first time the card appears in a Masters set, and its first time with a borderless treatment of a brand new artwork, and the first time we see several motifs of past depictions married together
Its kind of skill testing and rewards precision, just like the ninja at the head of the deck, so its fun to play
Why not pack this bat with buddy Disciple of the Vault and your artifact token machineries of choice and go to town