This ability lets you play politics, forge alliances, or simply keep everyone smilingwhile positioning yourself for the win
The former certainly is the larger factor, with the rarest pulls like alternate art cards, or secret rare gold cards, always fetching the highest prices
Fun This last criteria is less concrete but in many ways the most important part of a discard design
If you pull this from one of your prize packs, slap that puppy in a protective sleeve and top loader
Like most Pokmon cards, the value of Roller Skater depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Cosmic Eclipse)
Since Ghalta costs X less to cast, where X is the total power of Creatures you control, your normal Green game plan of playing mana dorks and cheap, oversized Creatures naturally brings this cost down early