Summary:
Gain blueprints from selling event buildings, and use blueprints to buy upgraded event buildings.
Description:
While we know very little about what (if anything) the upcoming "Blueprints" feature will be used for other than upgrading Magical Residences/Workshops, I have an idea that might make them appealing to everyone.
What if selling an event building gave you some blueprints? Let's say
2 per chapter level. So a Father Tree that you got in chapter 4 would give you 8 blueprints. Then, since you have
"unlocked" the Father tree, you could buy it/build it at any time and it would scale to your current chapter-- BUT at a cost of
4 blueprints per chapter level.
To sum up:
- Gain an event building in chapter 4,
- Sell event building for 8 blueprints, and "unlock" that building
- Reach chapter 5
- Buy event building that you previously "unlocked" for 20 blueprints
Motivation:
Buildings serve 2 purposes in Elvenar;
- Making your city look good/unique
- Enhancing your city's efficiency by giving you goods/pop/supplies/culture.
Ideally a building should do both, and most event buildings do...for a while. As you progress you will "outgrow" these buildings, and have to choose whether to replace them with more efficient ones, or keep them. Also some event buildings might be seen as "seasonal", and not everyone wants a snowman year round.
Possible Downsides:
Obviously the number of blueprints needed for upgrading Magic buildings, and the number you can win from tournaments would need to reflect this balance, that's why I'm making a suggestion before they come out and it's possibly too late.