As for Amethyst, this tricky color is up to all its normal
If heads, prevent all effects of an attack, including damage, done to Silver Pikachu during your opponent's next turn
Otherwise, you simply need some solid Trainer cards to draw cards and switch your allies without retreat costs, since you'll want one Pokemon to load up your fighters and don't want to waste any time or energy cards
It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has ': Add three mana of any one color
Even so, if you do play red decks, it would totally be worth your while to do what you can to trade for a hashed-up copy of Wheel from some old-timer, because nothing else fuels your hand for that mana cost
You don't really see overhanging arches spouting lava, rather it's just a big cave with lava pits (that you can traverse, at that)