Myrdak (The Storm Moon)

Go to: calendar of moons

“… and so it was, that Myrdak the Just smote ruin down upon the worker of evil, him and his followers, so that the people did rejoice in the final coming of justice …” – from The Legend of Gaulk.

Myrdak is at first appearance no different from an ordinary moon, since its hue and texture and shadows are generally consistent with such a moon, and most of its natural influences (geological, hydrological, cosmological, etc.) seem quite ordinary. However, the moon has clear associations with storms and law; the environment is generally more dangerous during Gaulk, especially for chaotic, evil, or otherwise destructive individuals.

[Image Place Holder]

Name: Myrdak
Proper: Myliundrakilyr
Alias: The Storm Moon, The Smiting Moon, The Fist of Judgement
Month: 16th; Gaulk (20 days)
Season: Winter, Stormseason
Assoc.: Lightning, Thunder, Air, Truth, Justice, Law, Order,


One of the first moons to be named, Myliundrakilyr comes from the old language for “smiting judgement.” Reportedly a bolt of lightning from the moon struck a worker of great evil, leaving a scar on its visible side as a reminder to the people of Erdon that evil shall never prevail. It is also said that none can swear falsely by Mrydak’s light, and storms during this month are generally more dangerous than at other times of the year. Myrdak waxes and wanes normally, and appears to influence magical effects that depend on lunar phases (such as lycanthropy), independently from other moons, such as Myrdle and Myrdech.

In appearance Myrdak resembles a block (or sphere, rather) of roughly hewn smoky marble because of the mixing of its white and grey hues, and some of the darker hues appear to form a jagged scar, not unlike a streak of lightning as typically depicted. This bolt-like scar always faces Erdon thanks to the moon’s perfectly synchronous orbit, and is especially noticeable during the moon’s prominence. As with Myrdak’s other features, the scar is only visible when Myrdak is more than half-full. Some have reported seeing sparks of electricity jump around its surface. Myrdak is associated with the winds and storms, justice, and gods and creatures who paragon, champion, or represent such things.

Lunar Effects

General Effects and Illumination
Myrdak generates normal illumination, in accordance with its phase; it does not inherently affect activities influenced by light (or lack thereof), nor does it directly influence temperature, except as an ordinary moon would. When prominent, its orbit and trajectory have the greatest influence on things such as the tides, winds, and currents, and these influences are very pronounced, especially the winds. Naturally Myrdlis has a still greater effect on the waters of Erdon during its prominence than Myrdak does during the days of Gaulk. Natural winds during this time are typically 1 category stronger than normal; rainstorms are more often thunderstorms, thunderstorms are more often lightning storms, and lightning storms are more violent than usual.

Furthermore, chaotic characters take a -1 penalty to reflex saves and AC to avert storm hazards; evil characters take the same penalties, which stack with those for being chaotic (i.e. CE characters suffer a -2 penalty). These penalties stack with any other penalties incurred (e.g. armor penalties), and occur whether the storms are natural or magical.

Lunar Magic
Mages are able to cast spells that produce storm-like effects, such as lightning or gust of wind at a +1 caster level; and threatened chaotic or evil creatures take penalties as if the phenomenon were purely natural. Air Sorcerers and other mages devoted to the air cast their spells at a +1 caster level, which stacks with the bonus inherent to storm spells.

Anyone who is exposed to Myrdak’s light (while prominent) is affected as if by a zone of truth spell (CL 20), and cannot attempt deceptions of any kind unless they succeed on a DC 25 Will Save (29 if the scar is showing). To successfully cast illusions, transmutations, and any spell that has “false” or similar descriptor (e.g. False Life, Leomund’s Secret Chest, Mirror Image, Blur, etc.), or that produces a deceptive effect, the caster must make a DC 29 spellcraft check.

According to some rumors, certain heavenly beings favor the month to set wrongs to right. The stories have it that these beings appear as anything from magical beasts to angels, and even dragons; and a few mention utterly strange creatures of completely alien make, constructs almost, and almost as single-minded too.

When the Storm Moon eclipses the sun, it goes dark as an ordinary moon would, but its scar shines as if a great light were shining through a ragged crack; light the color of lightning. During a Storm Eclipse, all winds and storms in the moon’s shadow become 1 additional category more violent than normal (i.e. 2 categories stronger than at other times of the year besides Gaulk), and winds start where none were before. These storms remain in Myrdak’s shadow, but move about at great speeds therein, and seek out areas of evil and chaos; they are often called Moonstorms.

Should a storm spell be cast under a Storm Eclipse, the caster can apply a metamagic feat that he knows to the spell, even if he didn’t prepare a modified version. The number of extra spell slots needed to cast the modified version is 1 less than normal, to a minimum of 0, and this is determined separately for each metamagic feat. For example, such spells could be Enlarged for free ( +1 level – 1 level = +0 net level), and such a spell that was Enlarged and Empowered would only require 1 extra spell level under Myrdak, as opposed to 3 (1 + 2); such spells could be Heightened and only require a spell slot 1 level lower than normal – though an unmodified spell could not be cast at a lower level (i.e. a caster couldn’t Heighten by 0 and cast using a spell slot that was 1 level lower than normal, such as a 2nd level Lightning bolt). The same applies to prepared spells.

When Myrdak passes between the sun and Erdon’s center, the event is called a True Storm Eclipse, and is revealed by a blinding arc of lightning streaking “from erd to moon” commonly known as Myrdak’s Smite. The arc may last a few seconds or may persist for up to a minute or so; it may or may not repeat, and may be linear, curved, helictical, branched, webbed, or some other shape. An arc-series will last no longer than the duration of the associated True Eclipse, but may chain beyond the range of the eclipse, and secondary arcs may persist after the eclipse has passed.


Myrdak is closely tied to The Legend of Gaulk, but according to another legend, Myrdak’s scar will always shine upon the current location of Gaulk’s “Bloodmace,” on an aniversary of Gaulk’s Last Day (though moonstorm clouds may obscure the effect). Gaulk’s final defeat is remembered on the last day of the month with his name; the actual date has been lost or obscured. It is believed that Myrdak’s Smite (and also the mysterious sparks) leave behind or produce valuable gemstones; even powerful magic crystals, not unlike Fire Moon lore. These locations are said to be eternally charged with Myrdak’s sparks.

Go to: calendar of moons

Myrdak (The Storm Moon)

The Chronicles of Erdon Beaumains