Seasons: Path of Destiny

No. You can add the new Power cards to the base game’s beginner or advanced deck, and choose whether to use one, several, or all of the expansion’s features. (p. 2)

No. Choose one Enchantment before the Prelude and place it face up; its rule changes apply to all players for the entire game. (p. 3)

Usually, no: at the start of your turn, you may roll the Die of Destiny instead of applying the actions on your Season die, and then resolve its result and gain its Destiny points. Each player decides individually whether to do this. (p. 3)

The player with the most Destiny points gains 20 Prestige points; if players tie for the most, each tied player gains 10 Prestige points. (pp. 3–4)

You can use it only once per game, during your turn after selecting a Season die and applying its effects; flip it over when used, since its reverse shows the end-game Prestige adjustment. You may leave it unused, in which case it stays face up and gives no Prestige adjustment. (p. 4)