Magic Damage

There are various methods by which players can increase their potential maximum magic damage. The effects of most equipped items can be seen at the bottom of the stats window (labelled Magic Damage: +x%), however not all boosting items are shown there. Temporarily increasing your magic level also increases your max hit (by 3% per level boosted), this boost isn't shown in the stats window either.

As far as is known, all of these bonuses stack, as long as they can be worn/ used simultaneously.

Damage-boosting Equipment

 * It is important to note that items with a magic attack bonus such as the Third age mage hat don't boost your max hit, just your accuracy. Similarly, items with a magic defence bonus, such as the black d'hide body don't affect the maximum damage you will take from spells, just your opponent's accuracy.
 * A full set of void knight armour won't raise your max hit, only your accuracy.

Damage-boosting Level ups



 * For every point that the player's magic level is boosted above their base level their max damage boost by 3%.
 * Wizard's mind bomb will boost your magic level by 2 if your base level is under 50 of by 3 for levels 50 and over.
 * Mature Wizard's mind bomb will boost your magic level by 3 if your base level is under 50 of by 4 for levels 50 and over.
 * Prayers such as Mystic Will and Augury only increase accuracy, not max hit.
 * None of the level boosting methods stack with each other, but the percentage bonus of the boosted magic level will stack with items' magic damage bonuses (e.g. that from the staff of light).

Special Circumstances

 * Charge is a spell which temporarily increases the maximum damage of the three God spells by 100 (providing the player is wearing the corresponding god cape). The spell requires a magic level of 80.
 * Salarin the Twisted (who is susceptible only to strike spells), can be hit 90 lifepoints by wind strike, 100 by water strike, 110 by earth strike, and 120 by fire strike. These max hits cannot be boosted with items or potions.
 * Ice strykewyrms can be hit 1.5 times higher by players using fire spells, and 2 times higher plus an extra 40 damage (added after all multipliers, similar to a ferocious ring) by players wearing a Fire cape and casting fire spells (other spell types get an extra 40 damage with a fire cape, except ice spells which heal the strykewyrm).

Max Hit Table
Currently, the highest magic damage boost possible is 30 + 66% + 40. The maximum magic hit in the game, known to be at least 1060, can be achieved by casting Fire surge on an Ice strykewyrm with the Staff of light, Arcane stream necklace, Hexcrest, and Fire cape equipped, after drinking Extreme magic potion. The maximum total theoretical damage from one spell is 4,995, achieved by hitting nine targets with Miasmic Barrage for 555 life points each; however such a max is not possible, as it would have to be hit on 9 slayer monsters standing in a 3x3 box, an impossible circumstance.

Boosts are listed in the order they are believed to be applied. For instance, the +100 damage boost gained by the Charge spell used in conjunction with a staff of light would give a +115 bonus. However the order in which some boosts are applied has not yet been confirmed.

Special circumstances, listed above, have been excluded from here.

The items listed below as Highest Applicable Boosting items list the items that are not surpassed in terms of magic damage boost given, however some are tied. The Hexcrest is interchangeable with the Full slayer helmet, and Extreme magic potions are interchangeable with Overload potions.