These spells rely on tokens called Speed Counters for their activation costs, and the Counters are collected and stored by both players as the duel continues -- you get more during each Standby Phase, and you lose them when you use them, or when you take considerable damage from enemy attacks
Anywhere other than the battlefield and when they are on the battlefield unmelded, meld cards only have the characteristics (total mana value, type, color, etc.) of their front unmelded side
We dont seem to know the answer, so memes to the rescue
However, it took a few turns to get enough energy in play to use Evil Ball effectively
What does Standard offer us
It doesn't hold a candle to Umbreon VMAX (Moonbreon) or Umbreon ex from Prismatic Evolutions, however, as both cards sell for over $1,000, ungraded