Another way to use this card, besides getting it into the active Pokemon spot right away, is to put Rayquaza EX on your bench and over time add energy cards to it, so by close to the end of the game you have 6 energy cards on it, three each of fire and electric, you can then move Rayquaza EX into the active Pokemon spot, and if you have 2 or less Pokemon to knock out before you win the game, Rayquaza EX should guarantee that you win the game
Who should pick it: Players who want bulk-friendly pricing without leaving an MTG-native ordering experience
UR Ultra Rare Ichiroku's Ledger Book X TRAP Target up to 2 monsters your opponent controls
Considering that the Grookey and Thwackey cards from Twilight Masquerade are decently sturdy and have their own perks, its easy to set-up and get Rillaboom in play quickly
Against Despia, neither card is particularly effective, which makes things quite tough, but if you have Called by the Grave, you can counter Branded in Red, which opens up a path to victory