Mystic Vale

If you pass you immediately skip to your Harvest Phase; if you push you place your on‑deck card into your field, resolve its "When Played" abilities, reveal a new on‑deck card, then repeat until you either choose to pass or you Spoil (page 8).

You Spoil immediately if you have 4 or more decay (red) symbols revealed during your Planting Phase or Prep Phase (counting field and on‑deck); each growth (green) symbol cancels one decay (red) (page 9), and Prep Phase placement can also force an automatic Spoil if it creates three or more red showing (page 13).

Your on‑deck card is not considered in your field or deck for most effects: "When Played" and "Harvest" abilities cannot be used while a card is on‑deck, and you only count the on‑deck card's red and green symbols (other symbols don't count) — ongoing abilities still work (page 14).

You pay vale costs with spirit symbols shown on cards in your field (not your on‑deck card); wild spirit symbols may be used as any spirit, and a green (leaf) cost may be paid with any spirit (page 10), while the blue mana token may be spent during your Harvest Phase for +1 mana by turning it to the spent side (page 10 and page 14).

You must sleeve each advancement you bought during your Discard Phase by choosing a card in your field (you may not choose your on‑deck card), and advancements do not become active until they are sleeved (pages 12 and 10).