Several factors influence Evolving Skies card values: card condition (mint cards worth 3-5x more), rarity (holographic and rare cards command higher prices), first edition status, PSA/BGS grading scores, and market demand for specific Pokemon
C Common Branded in White X SPELL Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters from your hand or field, including a Dragon monster
Keep in mind that Zen, the most common Ante format, is played with a very random assortment of cards of all colors, so higher power level cards that don't win the game themselves do not take the game over as effectively as one may think
All bundles are Official Sealed Pokemon TCG products fresh out of a sealed case
I can't recall a cycle of cards in a new expansion that did a bunch of great things like these and then add in the keyword to them as well as these, which is pretty common now