core set 21 booster box Magic 2021 art cards found only in Collector Boosters Core Set 2021 Bundle Unboxing

Would someone mind explaining the function of a Tag Team card in the TCG

(A creature with shadow can block or be blocked by only creatures with shadow.) Plane - The Library Two Streams Facility Whenever you planeswalk to Two Streams Facility and at the beginning of the first upkeep of the game, each player chooses green anchor or red waterfall

DUE TO HIGH DEMAND THEY WERE ONLY SOLD BY LOTTERY AT THE POKEMON CENTERS

Accessible for information to be read or swiped through a visible clear plastic protector window

image19203134 647 KBimage1067800 146 KB Solid Yellow - 2 Borders image19203229 414 KB Not my Card - Unknown Owner Another card on this list I dont own or have any info on