Thats likely because Fighting type Pokemon are among the strongest in the game, in terms of straightforward damage dealt
The second card is Mew from the Southern Islands Set and is a reverse holo graded CGC NM/Mint+ 8.5
Thankfully, we have some ways to speed up the process of killing our opponent, so that we hopefully don't have to wait until our opponent draws all of their cards to win the game
R Rare Mikanko Fire Dance X SPELL Equip Special Summon 1 "Mikanko" monster from your hand or GY, and if you do, equip it with this card, then you can Special Summon 1 monster from your opponent's GY to their field, but negate its effects
Some of the better effects, such as bouncing cards or destroying cards in a column, require two Attributes combined
While some collectors do not consider it as rare and valuable as the 1st edition Mewtwo, it still holds a high rank among collectors