If the colours look off, or out of place, anywhere on the card, compare it directly to a real one to confirm the difference
Track the total value of your collection as it grows every day
:( UPDATE: Added 5 cards-Fizz and Chum, Taric, Zephyr, and Zhonya's Hourglass
At the same time, damage of a certain type may be reduced if that Pokmon has a resistance against that Attack type
The classic example is a blue player deliberately setting aside (or holding up) two untapped Islands from the rest of their mana and then passing turn: they are now representing Counterspell
Some older Stage 2 cards could also see some more play, including Venusaur ex (which also pairs well with the new Lillie supporter card) or Blastoise ex