Sköll

Sköll is a powerful wolf spoken of in the folklore of the Fremennik people. According to their beliefs, Sköll's goal is to eat the sun, and is the brother of Hati, a wolf whose goal is to eat the moon. Should both succeed in their tasks, The End of Things will begin. Until Sköll is successful in his mission, the Fremennik believe him to be responsible for causing the extreme heat of summer. Sköll is said to be stronger and more agile than his brother, drawing strength from the strong northern winds.

Vitharr wishes to summon Sköll, when he is at his strongest - which occurs in the January of each year, starting in 2012 and returning in 2013 and 2014 - in order to defeat him and rid the Fremmennik of the threat of the two wolf brothers. By doing so, she hopes to show the brothers that the Fremmennik cannot be bested at any time of year, thus deterring the brothers from attacking the citizens. To summon Sköll, Vitharr advises players to build a bonfire as intense as the sun, so that Sköll is drawn to the realm to investigate.

Like his brother Hati, who drops the Hati paws, Sköll drops the Sköll boots, which grant a large amount of bonus Woodcutting or Agility experience, in addition to a cosmetic Sköll amulet. Since 2014, he can also drop Eir's helmet and Eir's spear, although only one type will drop; if you receive a spear as a drop, you will never receive a helmet as a drop.

Mechanics
To summon Sköll, players must first add logs to the nearby bonfire, which is located just outside of Relleka, far west of the south entrance. A total of 120 logs are needed to summon him, and any logs used in Firemaking can be used. The fastest way to build the bonfire is to chop logs at the area, but they can also be brought from your bank. When adding different types of logs (for example, normal logs and oak logs), you have to click and add them seperately. Another arguably faster method is to bring a noted stack of logs and run from the bonfire to Sigmund the Merchant in the Rekella Market, where you can trade the noted logs to him and buy unnoted ones back.

As Sköll is summoned he exclaims, "Låt skyarna falla!", which translated from Swedish into English means, "Let the skies fall!" and four rocks will fall in the area around him. Fires will light between the rocks, enclosing a square around him. Anyone inside this area when the fires are lit will be trapped, with the only method of escape being teleporting or climbing over the rocks at the corners of the square. After a few seconds, the meteors will explode, causing a large amount of unblockable damage (400-1000, possibly more) to anyone inside. Players outside the fires will not be able to attack with melee until the fires disappear, while ranges and mages can safely attack him from outside the flames. This attack can also be avoided by clicking out of the area immediately when the meteors fall but before the flame barriers appear.

At any point after initially spawning, he can teleport closer to the bonfire and use his flame attack again, yelling "Ni kan inte fly!" which translated from Swedish into English means "You cannot flee!", with the same mechanics as when he uses it initially.

At any point during the battle, Sköll may summon 2-5 level 60 Fenris wolves that will be aggressive to any nearby players, exclaiming "Kusiner, kom och ät upp dem!" which translated from Swedish into English means "Cousins, come and eat them up!" as he does so. Killing them is optional, and it is recommended that they be ignored.

Besides his special attacks, Sköll attacks with fire wave, fire strike and a melee pounce attack. He does not approach players to melee them, similar to metal dragons. Mages and rangers are therefore recommended to stand out of his melee range, but beware of his summoned wolves. It should be noted that his magic attacks are quite rapid (once every 2.4 seconds, or 4 game ticks, or the speed of wands) and very accurate.

Strategy
Higher-leveled players should have no difficulty in defeating Sköll, as while he is significantly stronger than his brother, he is still rather easy, with his large lifepoints flaming rocks special attack being his only true strengths. This being said, he should not be underestimated, and lower-leveled players may have some difficulty with him, and thus are advised to fight him on a populated world. Fighting as a group is advised regardless of your level, as his large amount of lifepoints make the fight time-consuming when done solo.

Protect from Magic/Deflect Magic, Sharks or Rocktail and good armour are advised to make the fight easier, especially for those with a lower combat level. Making any hit on Sköll (even just a 1) will qualify you for the chances of getting the boots. However, the lower you hit, the higher the chance that you will have to fight Sköll again to get the boots. Sköll is weak to Fire spells, as hinted by Vitharr, making Magic the advised attack style. However, he can still be easily hit with any form of combat.

A good tactic to defeat him is to first let the barriers that surround Sköll explode, avoiding the 500+ damage that can be dealt, then attack him. Be aware that Sköll can also teleport around, but won't stray too far from his original spawn point. Sköll will use his flaming barrier attack immediately after teleporting; be sure not to get caught in it. A good way to avoid this attack is to range or mage him among the dead trees and tree stumps, as Sköll never teleports into them.

Drops

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Trivia

 * Like Hati, who is based on the Nordic Hati Hróðvitnisson, Sköll is based on a figure of the same name featured in Norse mythology. This is in keeping with the image of the Fremennik, who are based heavily on the real-world Norsemen.
 * Sköll gave no experience upon being attacked before the Evolution of Combat, despite having a large amount of life points and being a "boss" monster. It is unknown if this is intended or not.
 * Sköll is also attackable by dreadnips.
 * Mod Drew has been quoted as saying that there is a 60% chance of Sköll dropping Sköll boots.
 * Many lower-level rangers and mages decide to stand on the other side of the bonfire away from the meteors while the melee fighters take all damage, therefore negating all possible damage.