Mystic Vale
How can Watcher in the Wood or Blighted Dragon claim their VP if they are added during Harvest?
One thread describes the trigger, and no designer ruling confirms it.
- loungehead · Community · 2022-02-21
They trigger when a card is added to your field during Harvest, which happens through other cards' Harvest abilities such as the leader Yaquei the Poisoned. Their effect applies only when that happens.