Resonance

Resonance is a basic Defence ability. When activated, the next attack received by the player within 6 seconds will heal the player instead of damaging them. However, as of 5 February 2013, some highly damaging special attacks of bosses are blocked, but will not heal. The Preparation ability can be used to reduce the cooldown of Resonance by 3 seconds for each attack received. When damage is converted to healing by this ability, the player is always dealt exactly 1 damage. If the hit is meant to deal 1 damage, the player is not healed, the damage is still dealt and the effect is consumed. Resonance does not block the strykewyrms' burrowing special.

Currently, there is no known limit to the healing provided by this ability. The highest amount of healing observed thus far is 10,498, against the Kalphite King.