During the Ruby & Sapphire era, the highest HP on Ralts cards was 50, Kirlias had 70, regular Gardevoir had 100, and both Gardevoir s had 150

XY Three Pack Blister [Gyarados] BREAKpoint Collector Pin 3 Pack Blister [Shiny Mega Gyarados] Shiny Mega Gyarados Collection Triple Power Tin [Shiny Gyarados EX] $397.97 Mega Gyarados Collection Box $523.00 Gyarados ex Premium Collection $111.07 Team Up Premium Checklane Blister [Gyarados] $750.00 Hidden Fates Tin [Gyarados GX] $153.32 Ivysaur #2Uncommon $0.42 Spinarak (Peelable Ditto) #6Common $15.37 Slowpoke #19Common $0.27 Dragonite V- 049/071 #49Double Rare $1.61 Squirtle #15Common $0.45 Water Energy (Mirror Holofoil) None $0.52 Fighting Energy (Mirror Holofoil) None $0.39 Pikachu - 027/071 #27Common $1.04 Alolan Exeggutor V - 005/071 #5Double Rare $0.46 Spinarak #6Common $0.27 Dark Gyarados #36Uncommon $33.77 Dark Gyarados #8Classic Collection $4.94 Dark Gyarados (25) #25Rare $19.48 Dark Gyarados (8) #8Holo Rare $73.21 Dark Gyarados (Prerelease) #8Promo $34.81 Giovanni's Gyarados #5Holo Rare $123.70 Gyarados #6Holo Rare $49.98 Gyarados #6Holo Rare $121.74 Gyarados #7Holo Rare $42.70 Gyarados #12Holo Rare $47.44

The strategy is the same old get cards into your Lost Zone with help from Comfey [Lost Origin] and Colresss Experiment [Lost Origin], scale them to be able to attack with Cramorant [Lost Origin], accelerate Energy with Mirage Gate [Lost Origin], and spread damage counters with Sableye [Lost Origin]
Couple that with blue, and you get efficient decks that can manage any board state and overwhelm your opponent in the blink of an eye
4) Lich Lord of Unx $5 The Lich Lord was a bulk rare, or close to it, when Alara Reborn was released
Darumaka [Poke Ball] #13 (Pokemon Black Bolt | Pokemon Cards) prices are based on the historic sales