Rune defender

The rune defender is the strongest defender. It is not used for attack and is held in the off-hand in place of a shield. It requires 40 Attack and 40 Defence to wield. The rune defender is dropped by Cyclops on the top floor of the Warriors' Guild, but players have to show either their Adamant defender or Rune defender to Kamfreena to obtain this as a drop. Their slash and crush bonus are the same as a black kiteshield, however their stab bonus is slightly less than an adamant square shield. Players may have more than one rune defender.

The drop rate is roughly 1 in 50 cyclops kills, assuming an equal number of level 76 and level 56 cyclops are killed.