Dark magic aura

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Dark magic aura



Release																				6 December 2011 (Update)
Members																				Yes
Quest item																				No

Properties

Tradeable																				No
Stacks in bank																				No
Equipable																				Yes
Stackable																				No
Disassembly																				No
Destroy																				Are you sure you want to destroy this item? You can get a replacement from the Loyalty Shop.
Examine																				When attacking you have a chance to inflict corrupting damage on an opponent.

Options ^[?]

Backpack																				Destroy
Equipped																				Manage auras, Aura time remaining, Deactivate

Values

Value																				1 coin
Alchemy																				Not alchemisable
On death																				Always kept outside dangerous area
Weight																				0.001 kg

Advanced data

Item ID																				22891
Links																				MRID • recipe

Dark magic is a tier-3 aura that can be bought from War's Wares for 12,500 Marks of War. When activated, any damaging attack, including bleeds and all four combat styles but excluding poison, has an estimated 13% chance of inflicting a corrupting effect that deals damage of the same type as the equipped main handed weapon four times per activation. This aura has an invisible cooldown between activations that is specific to the target being attacked. This causes the dark magic aura to have significantly reduced effectiveness when multiple players are using it against the same opponent at the same time.

It is activated for 1 hour and has a cooldown time of 3 hours.

Aura stats[edit | edit source]

Source
War's Wares
Tier	Slot
3
Attributes
Duration	1 hour
Cooldown	3 hours
Cost to extend (50%)	20 Vis wax
Cost to extend (100%)	40 Vis wax
Description
Your damaging magic can additionally inflict a corrupting damage over time effect.

Mechanics[edit | edit source]

Dark magic has an estimated 13% chance to activate from each hit of an ability, auto-attack, reflect damage (armour spikes, Linza the Disgraced's equipment, etc.), or deflection curse. It cannot activate from poison damage, the wyvern crossbow's passive effect, or damage from the effect of necklaces made from the blood necklace shard.

The damage applied is of the same type as the main hand weapon equipped and the initial damage of this effect is the smaller of the following two numbers:

$15 \cdot (L + 1)$ where $L$ is the player's level in the corresponding damage-boosting skill, ignoring level boosts; a maximum of 1,500 at level 99 or 1,815 at level 120 for Necromancy.
5% of the monster's maximum life points

Upon activation, the aura deals 100% of that damage, then 80% of it, then 64% of it, then 51.2% of it (295.2% total, or at most 14.76% of the monster's maximum life points). The first hit will deal damage six ticks after activation, and each subsequent bleed hit will take six ticks. After the last bleed hit has dealt damage, there is a six-tick cooldown until the aura can activate again. In total, the entire bleed takes around 36 ticks (21.6 seconds) until the aura can activate again. This damage is counted as auto-attack damage, and it does not carry over from one monster to another if the first one dies while under the effect. The damage from the aura cannot land as a critical hit.

For example, a rune dragon has 68,250 life points. If the player uses ranged with level 99 Ranged and a supreme overload potion, their dark magic damage would be the lesser of $(99 + 1) \cdot 15 = 1500$ damage or $68, 250 \cdot 0.05 = 3412$ damage. Their first hit would be 1,500, then 1,200, then 960, then 768, for a total of 4,428 damage. Using dark magic aura can increase damage output by 5–10% in the long run, depending on the monster's life points and the player's hits per minute.

Dark magic's effect on DPM based on rotation type
Rotation type	Hits/min	Average DPM	DPM increase	% increase of damage output
4-tick auto-attack	75.8	170,000	9,938	5.85%
Staff only	60	165,000	9,470	5.74%
Ranged	62.6	175,000	9,539	5.45%
Melee	67.4	190,000	9,824	5.17%
2H Legacy Mode (average speed)	16.6	105,000	5,381	5.12%
Dual wield Legacy Mode (fastest speed)	50	105,000	8,919	8.49%

The DPM increase is not linear; for example, dealing 60 hits per minute instead of 30 does not double the damage dark magic deals. However, a formula can estimate the amount of damage it can deal. By inputting hits per minute, it will output the damage dealt per minute from dark magic. This formula does not take monster life points into the equation.

$D P M_{D a r k m a g i c} = 3873.938 + (139.5048 \cdot H) - 0.7739869 \cdot H^{2}$ , where $H$ is the number of hits the player deals in a minute.

The formula's DPM assumes using overloads, level 95/99 curses, tier 90 equipment, and perks—no Vulnerability, familiars, poison, or bakriminel bolts were used. The higher the player's damage per minute, the less of an effective increase in damage dark magic becomes. This would also mean a significant boost in damage if one was using a wand and shield combo, which is more noticeable than when dual-wielding or using a staff.

Shop locations[edit | edit source]

Update history[edit | edit source]

This information has been compiled as part of the update history project. Some updates may not be included – see here for how to help out!

patch 27 February 2023 (Update):
- The timer for an active Aura will no longer decrease while logged out.

hotfix 18 October 2016 (Update):
- The effects of an inactive Dark Magic aura will no longer trigger when using ranged attacks.

patch 4 January 2016 (Update):
- The Dark magic aura no longer inflicts damage after death.

patch 26 October 2015 (Update):
- The Dark magic aura will now work with all combat styles, dealing damage corresponding to your main-hand weapon.

ninja 31 March 2014 (Update):
- The dark magic aura no longer causes damage to creatures while they should be immune.

ninja 24 March 2014 (Update):
- The Dark Magic aura has been made significantly more powerful and triggers more often. Now does magic damage rather than poison damage.

update 6 December 2011 (Update):
- Added to game.

Trivia[edit | edit source]

This aura was made significantly more powerful due to a Ninja Team fix on 24 March 2014^[1]. Previously, dark magic dealt around 98 damage on about 2% of its hits, making it fairly weak. Additionally, it could not damage poison-immune monsters like Glacors and ganodermic beasts because the damage was counted as poison. This aura was further updated on 26 October 2015, allowing it to work for any combat style - it previously only activated for magic attacks.
Prior to the release of War's Retreat, the aura could be bought from the Loyalty Programme Shop for 42,500 Membership Loyalty Points.

References[edit | edit source]

^ Jagex. Patch Notes 24/03/2014. Patch Notes Forums. 24 March 2014. (Archived from the original on 24 March 2014.)

[1] Jagex. Patch Notes 24/03/2014. Patch Notes Forums. 24 March 2014. (Archived from the original on 24 March 2014.)

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