It may seem like a lot of money for a card that can be easily grabbed as a regular art from a starter deck, but the card is just that good
But what if it didnt
Created by scientists experimenting on the DNA of the mythical Mew, engineered to be the ultimate weapon, and driven to existential crisis by the nature of its own existence, Mewtwo was designed to be the most powerful Pokemon alive, and that narrative of terrifying, uncontrollable power has resonated with fans for nearly thirty years
Itd be a lot better if at least one cost 5 mana because then you could cast one on turn 5 and the other on turn 6
Since most pokemon from the GX or EX series have a retreat cost of at least 2-3 energies, Mega Sharpedo EX can easily deal 20-30 damage to the opponents benched pokmon and weaken them enough to be finished using the cards Torpedo Drive ability, when they come into active play
Thats what aging in a time of endless information deluge will do to you