Whether its a childhood Base Set card or a recent pull from a Scarlet & Violet booster, grading keeps the card safe, straight and protected from moisture, bending or surface damage
With 540 slots to work with, moving around some fringe cards doesnt change the general, familiar experience too much, while also allowing for new cards and strategies to increase the variety and replayability of each iteration
Shinning Pokemon are the first form of Shiny Pokemon in the TCG and, just like Crystal Pokemon both usually require multiple types of Energy to use their attacks
Wizards has pretty much rubber-stamped the trick
At the time it was worded as a triggered effect ( when this creature deals damage, its controller gains that much life), but it has since been reworked into a static effect (damage dealt by this creature also causes its controller to gain that much life)