Suppose I have an Inheritance token on Scout. Then, I buy an Estate. When does it become Scout?
Estates in the Supply, obviously, are not mine (otherwise Dominion becomes really easy for me), so they aren't Scout. So they wouldn't be gainable by Stonemason overpay/University.
But when does the card become "mine"? Is it an on-gain effect? Or does it have some sort of precedence, i.e. before all on-gain effects, or after all of them?
What happens if I Ironworks for an Estate?
Does Ironworks gain the Estate, look at it, go "Oh, that's one of my Estates, it's also Scout, so it's an Action. Here, have +1 Action +1 Card."
Or does it go "Oh, I gained an Estate, that's a Victory. It wasn't mine, cause I had to gain it, so it wasn't a Scout yet. So only +1 Card, I guess..."
Feels to me like it should be the first one, since you gain the card, then look at it. So somewhere sneakily in the middle, between gaining and checking, an inheritance lawyer comes and tells the Estate that it should now pretend like it's a Scout, and tell other cards that it is an Action. But is that a new step? Or is a card becoming "mine" an on-gain effect, so we could interrupt it with cards like Watchtower and Trader, and order the stacked on-gain effects that we control?
Edit: Damn, ninja'd