Its long served as a powerful value card, and as a great way to punish artifacts
Presuming you don't have many other routes to fix your mana, then I'd definitely wait until you can deploy your partially off-color six-drop
However, in the official update on X mentioned above, The Pokemon Company does say this selection of cards will expand over time
In some cultures, these are one in the same
92 plastic dividers total broken down as 72 type/stage dividers (all 12 Pokmon types: Fire, Water, Lightning, Grass, Fighting, Dragon, Psychic, Darkness, Fairy, Colorless, Dual type, Metal each in 6 stages: Basic, Stage 1, Stage 2 in both holo and non-holo), 12 energy dividers (Lightning, Fire, Water, Grass, Psychic, Fairy, Fighting, Metal, Darkness, Colorless, Special, Foiled), and 8 trainer dividers (Stadiums, Supporters, Tools, Items each in holo and non-holo)