Not before the one they have is burned.
>
> Name: Loki's Gift
> [KoT:C]
> Cardtype: Action
> Discipline: Protean
> +1 stealth hunt action.
> [pro] Gain 1 blood and this card. This vampire can burn this card and 1 blood to get +1 stealth. A vampire can have only one Loki's Gift.
> [PRO] As above, and burn a blood from any vampire. This vampire may burn this card as above, or may burn it during a referendum to gain 2 votes.
> Artist: Justin Norman
>