on player right clicks with REDSTONE_BLOCK: 
          - if !<player.has_flag[xd]> { 
            - flag buffalo duration:10s { 
              - if !<%value%.has_effect[NIGHT_VISION]> cast speed power:3 %value% 
              } 
            - cast INCREASE_DAMAGE power:1 duration:5 
            - announce '<&e><&lb><&6><&l>!<&e><&rb> <&b><player.name> <&e>uzyl <&b>Boski Rog Mocy <&e>kazdy w promieniu 30 kratek od niego otrzymal dodatkowa szybkosc!' 
            - determine fulfilled 
            } else { 
            - narrate "<&e>Przykro mi, ale mozesz uzyc rogu dopiero za <&c><&l><player.flag[xd].expiration.formatted>" 
            - determine fulfilled 
            }