9, 1999 This Mewtwo's ability to turn its opponent's Energy cards into damage may subvert the player's need for Energy/Super Energy Removal cards, if not eliminate the need entirely
In Pokemon TCG, the most expensive cards are usually the holo and secret rare cards and these are the ones that are going to cost us the most money

Ledian #5Uncommon $0.21 Walrein #39Rare $0.22 Tapu Fini #40Holo Rare $0.57 Larvesta #23Common $0.12 Blaziken VMAX #21Ultra Rare $4.46 Rapid Strike Urshifu #44Holo Rare $0.33 Kakuna #2Uncommon $0.08 Sealeo #38Uncommon $0.08 Gengar #57Holo Rare $3.73 Zeraora V #53Ultra Rare $0.83 Legendary Battle Decks [Moltres] $84.96 Legendary Birds Pin 3 Pack Blister [Moltres Pin] Enhanced 2-Pack Blister Pack [Galarian Articuno, Galarian Zapdos, & Galarian Moltres] $38.42 Enhanced 2-Pack Blister Pack [Articuno, Zapdos, & Moltres] $29.57 Team Rockets Moltres ex Ultra-Premium Collection $384.47 Team Rockets Moltres ex Ultra-Premium Collection Case $1049.12 Chilling Reign 2 Pack Blister [Galarian Zapdos V, Articuno V, Moltres V] $40.16 Crown Zenith Tin [Galarian Moltres] $145.01 Blaine's Moltres #1Holo Rare $114.66 Galarian Moltres #93Holo Rare $0.45 Galarian Moltres #93Rare $5.72 Galarian Moltres #26Rare $1.16 Galarian Moltres - 079/172 #79None $0.24 Galarian Moltres - 190/172 #190Art Rare $10.76 Galarian Moltres - SWSH284 #SWSH284Promo $14.15

This design plays into its dual type's strengths and weaknesses, making it highly resistant to Electric and Poison moves, yet vulnerable to Water and Grass attacks