The current player can sacrifice 1 shield once per turn when buying items. This means that instead of spending gold, the players can use their shields as a resource.
- A shield sacrifice counts as a game move, meaning that you can't buy further items (not even for regular gold) after this action.
- A player, as usual, is still able to move their figures after this action.
- When buying figures for shields, they will still be exhausted, so the player can't move them in the same turn.
- Restrictions to population still hold.
Matter of fact, shield sacrifice works the same way as a regular purchase of any item, with the exception of the costs.