Buy RS3 Armour spikes
Armour spikes are a consumable item in RuneScape 3 that hurt enemies who attack you. When a monster hits you from a tile right next to you, the spikes deal typeless damage back. The damage equals your current Smithing level, including boosts. One spike is used per hit, and up to 8 enemies can take spike damage at a time.
You can keep armour spikes in your inventory or wear them in the ammo slot. You do not need to equip them for the effect to work. To activate the spikes, you must use only melee weapons and wear melee torso and leg armour. The effect works when an enemy attacks you, even if the hit is blocked.
Shields make the spikes stronger. With a shield equipped, spike damage is doubled. With a defender, damage goes up by 50 percent. If a monster dies only from spike damage, you still get credit for the kill and the experience.
Armour spikes are great for AFK melee training and Slayer tasks. They let you deal extra damage without pressing anything. You can also smith them into alloy armour spikes at level 99 Smithing for even more damage.