Your pieces get mandated rest: for your opponent's next 2 turns after they capture one of your pieces, they cannot make a capture. If capturing is their only legal option, the rule is waived for that turn.
You draft Union Rules in Buff mode. Passive: it works on its own the whole time you hold it, with nothing to activate.
As a protection card, it shields a piece or bars squares from the opponent.
“You cannot work them to the bone every shift.”