The deck is heavily creature-based, so you need to be wary of board wipes since they can set you back a fair bit
Well, there are packs, card styles, and gold up for grabs
These parts include the set/expansion symbol, the frame, the color of the border, the rarity, the copyright symbol and date (if applicable), the corners, the foiling, and the art
You need to find it early enough to protect your Goodra, it can be removed by Lost Vacuum, and even if it sticks in play, the opponent can KO Goodra with Lugia, then use Yveltal to KO the second Goodra VSTAR later in the game
Valakut Exploration is probably the best, though
Historians Boon The enchantment payoff on Historian's Boon isn't as pronounced as something like Sigil of the Empty Throne, but you're really here for the saga text