Lucky dragon claw was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
The lucky dragon claw is a rare item that can be obtained by opening the Lucky dragon claws won from the Squeal of Fortune. It requires 60 Attack to wield. It has the same bonuses as the regular dragon claw, but is untradeable and has a different colour appearance. Unlike the regular dragon claw, chaotic spikes cannot be attached to this weapon to create the chaotic claw.
Upon release, there was a bug that allowed any player who possessed the claws to be able to equip them, even if the player did not meet the level requirements.