Long story short: Banned in Modern, banned in Legacy, and a very popular card-draw engine in the formats it's still legal in
Again, if theyre high-synergy, then you can still put in some decent work disrupting those synergies, though in general if your opponent has a lot of one- and two-mana spells and is trying to kill you, then your countermagic will look expensive and awkward in contrast and you wont have much time to set up or benefit from your card draw engines
The most expensive Pokmon cards have all been professionally graded, usually by companies like PSA or BGS
First we have the Zendikar Rising , Kaldheim , and Commander Legends 2-deck sets
This is the big deal for the CC, and is the iconic part of the card