For starters, Rayquaza is weak against other Colorless Pokemon which isnt a matchup you see often
Pre-combat main phase In the pre-combat main phase , you may play up to one land card from your hand to the battlefield, and you may cast any spells that you can afford to pay the mana costs of
For anyone interested in Pokmons entry into the global mainstream, this card represents a critical piece of the puzzle
To give you an idea as to how they price items, they are selling the Sword & Shield High-Class Pack VSTAR Universe (Set of 10 Packs) for $89.99 USD, which is going for around $63.90 USD on Amazon Japan pre-shipping cost
(Three colored mana was something development did to allow them to push the power level a little more, as the spells can only go in decks heavily dedicated to the color in question.) Scry The lengthier version is here, but I'll give a short synopsis of scry's design
Maybe it's an effect that's chaotic and unpredictable