This isn't because the cards aren't good, but it's rather an issue of the cards being reasonable individually as opposed to relying on a core Energy strategy
If you play Chain Summoning after playing Double Summon earlier that turn, you still get 3 total (the bigger number of the two), but not 5
SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE QCSE Quarter Century Secret Rare Cherubini, Ebon Angel of the Burning Abyss X DARK Link 2 [ FairyLinkEffect ] ATK 500 DEF - 2 Level 3 monsters Monsters this card points to cannot be destroyed by card effects
Shadowless: still has the first set of copyright years as "..., 98, 99 Nintendo", followed by "1999"
The most relevant cards in this set include: Black Kyurem, Lugia EX, Bicycle, Colress, Full Art Colress, Escape Rope, Hypnotoxic Laser, Virbank City Gym, Dowsing Machine Ace Spec, Scramble Switch Ace Spec, Secret Rare Random Receiver With Pokemon Plasma Storm Codes You can get the Following cards in PTCGO Brand-new Team Plasma cards 14 Trainer cards, including three powerful, never-before-seen ACE SPEC cards with unique game-mechanic and card design Eight more Pokmon-EX cards and four full-art Pokmon-EX rare Ultra cards More than 130 cards in all