Needing to play against blue or black opponents is a bit restrictive, but this card punches well above its weight as a cheap, interactive 2-for-1
They have merchandises not found in other Pokmon Centers
You can't destroy Stardust Dragon with a card effect, but you can Brian Control it and use it as a Synchro Material
She was one of the first gym leaders to have a side quest in the Pokmon games, with players needing to collect special medicine for an Ampharos in her care before she agrees to battle
It's also suitable for storage and display purposes, making it a versatile option for collectors
If you combine it with Vanity's Emptinessor Imperial Order, it will be quite a lock, but since both are limited cards, you might be lucky if you have them together