What I currently struggle most with, is having a clear idea of which decks exactly are viable in my cube
There's a lot to be said for just dropping bombs until something hits
Dispatch, Path to Exile, and Despark are all good targeted removal spells that take out individual threats that are too strong for Breya, Etherium Shapers -4/-4 ability
Maybe people are thinking about running it in some sort of Aromatisse (XY 93/146) deck, where you have the versatility of other attackers that you can run and move your energy around and heal Giratina and preserve your energy
Like any aggro deck including Amber, utilizing Lilo and Stitch cards also aids the possibility of getting powerful characters into play quickly
7 Charizard Star (Delta Species) - $993.99 EX Dragon Frontiers - 100 This card isn't just a Starits also a Delta Species, which means if you were expecting a Fire-type Charizard