What is the rarity of this Basculin card
I will say, across 55 packs, I did get at least one ex card for each of these new Megas, plus a few others
5 Erika Grass Pokemon Will Be Thankful Effect: Heal 50 damage from 1 of your Grass Pokemon Energy: Grass Favored Pokemon: Vileplume, Victreebel & Tangela Erika is the Grass-type Pokemon Gym Leader of Celadon City, and her supporter card fits that to a tee with its ability to heal a massive 50 damage to a Grass Pokemon card
However, if you're confused about where to find these cards, they are only available as special promo inserts in the EX Collector's Tins, which were released in late 2005 or early 2006 in some locations
Often an Opt will achieve more than Brainstorm as Opt is self contained, you have no need of a shuffle to obtain the maximum value
Contact a Pokemon expert before selling any cards you own