Nex

Nex, an immensely powerful entity, is one of Zaros's most powerful weapons of war. It is said that what she really is has been long lost to time. However, she possesses physical traits of the icyene, demons, aviantese and vampyres, being graceful, yet cruel and vicious. Thus, her race is indeterminable and her history and origin are equally a large mystery. It is known, though, that she is aligned to Zaros and acts as something of a leader to his last army.

Nex resides behind the Frozen door in the God Wars Dungeon, in a previously inaccessible area which was released on 10 January 2011. She has over 15 unique combat moves, the most for any monster in the game. Her chamber is a multicombat area like the rest of the God Wars dungeon. She is cited as being RuneScape's most powerful and intelligent boss to date.

In order to fight Nex, you must access all of the strongholds (but not boss room) and defeat a follower to retrieve a key part. This includes: Armadyl, Bandos, Saradomin and Zamorak, effectively requiring 70 Agility, Constitution, Strength and Ranged (some boostable) to fight Nex. When assembled, the parts make a Frozen key with 5 charges to open the Frozen door. The key can be repaired for a cost of 50,000 coins per charge.

Unlike the other bosses of God Wars Dungeon, there is a bank to refill on supplies before fighting Nex. However, there is no altar within the boss chamber, and the only way out of the chamber is to teleport or be slain.



History
The Zarosian army was imprisoned by Saradomin's forces in the beginning of the Third Age in an attempt to rid Gielinor of Zaros's followers. Nex managed to escape sometime during the God Wars when Saradomin, Armadyl, and Bandos were fighting the Zamorakian Army to protect the Godsword. It took the combined efforts of all four armies of the gods to imprison Nex and her army behind the Frozen door in the God Wars Dungeon. However, because of all the adventurers who came to the God Wars Dungeon looking for the Godsword, Nex has once again awakened and is now trying to escape from her imprisonment.

The Four Mages
There are 4 level 285 mages in each corner of Nex's chamber which represent the smoke, shadow, blood, and ice spells of the Ancient Magicks spellbook. Nex draws power from them to use their spells. You will be able to kill one of the mages in the aforementioned order each time you deplete one fifth of Nex's life points. She is not able to use the effect of any mage that you kill. The four mages and their powers are listed below:

Cruor (Blood): Cruor attacks with the spell Blood Barrage. When Nex uses Cruor's attribute, she will attack players with blood spells and drain their life points, healing herself in the process.

Umbra (Shadow): Umbra attacks with the spell Shadow Barrage. When Nex uses Umbra's attribute, her chamber will start getting darker. When it gets pitch-black, players will be hit for a lot of damage if they stand still for over 1.5 seconds.

Glacies (Ice): Glacies attacks with the spell Ice Barrage. When Nex uses Glacies's attribute, she freezes players, preventing them from moving for a preset period of time.

Fumus (Smoke): Fumus attacks with the spell Smoke Barrage. When Nex uses Fumus's attribute, she will occasionally create smoke clouds, causing poisonous magic damage to players nearby. A Facemask/Slayer helmet will not protect you from the smoke clouds.

After all the mages are down, Nex will start using the Soul Split prayer, occasionally using Deflect Curses as well.

Attacks
In addition to her regular Magic, Melee, and Ranged attacks, Nex has the following special attacks:


 * "NO ESCAPE!" - Nex will teleport and fly through one of the paths of the central symbol, disabling protection prayers.
 * "Let the virus flow through you" - Nex will create a cloud which reduces your stats, spreads to players 1 space away from you and deals some damage.
 * Dragging a player - Disables prayer.
 * Smoke barrage - Poisonous.
 * "Fear the shadow!" - Nex will make the boss room pitch black. If you're standing on the same place for around 1.5 seconds, you will be hit with 400-700 damage.
 * "I demand a blood sacrifice!" - Nex will target a player and the player will glow red. If the player does not move, Nex will use blood barrage on everyone and heal.
 * "A siphon will solve this!" - Summons blood reavers.
 * Ice barrage
 * "Die now, in a prison of ice!" - Nex freezes a targeted player using Glacies's Ice Barrage attack, rendering them immobile.
 * "Contain this!" - Nex creates a barrier of ice.
 * "NOW, THE POWER OF ZAROS!" - After the four mages are killed, Nex will activate Turmoil and switch between Deflect Melee and Soul Split.
 * "Taste my wrath!" - Upon death, Nex will activate Wrath (with a larger area of effect), dealing damage to everyone around her.

Battle
Nex moves very quickly; she can jump across the room in 1 tick. As she loses life, her four mages will become increasingly vulnerable and it is important to kill the mages when you can to disable her attacks. At around half health, she will spawn several blood reavers which should be killed to avoid extra damage. Whenever these monsters are not being targeted, everyone should focus on Nex. If you have a group of 15-25 people with max combat stats and whose members know how to fight Nex well, they will kill Nex about every 10–15 minutes.

Nex has 5 phases, Smoke, Shadow, Blood, Ice and a desperate phase. All of her spells are based on the Ancient Magicks spellbook.

Smoke phase: During this phase, she will use Smoke spells. This is the most dangerous phase since she can attack with poison that does 88 damage and at the same time disable your prayers. In addition, this attack stuns you in a similar manner to the magical drag attack used by Yk'Lagor the Thunderous (unlike Yk'Lagor, though, she will not heal). In this phase, she will cast a Virulent cloud on the players, which lowers combat stats drastically and can be transmitted from player to player. After she reaches 4/5th of her life points and her mage Fumus is killed, she will go to the next phase.

Shadow phase: During this phase, she will use Shadow spells. Nex has also 2 special abilities in this phase; she will lay "shadow traps" on the floor (these do 500 damage when under the player) and she can also darken the room, making it as dark as K'ril Tsutsaroth's chamber. If you stand still for about 1.5 seconds, you will be dealt constant damage. After she reaches 3/5th of her life points and her mage Umbra is killed, she will go to the next phase.

NOTE: Starting from this stage on, Nex becomes incredibly weakened, leaving her with lower accuracy on her attacks, but she is still very powerful.

Blood phase: During this phase, she will use Blood spells which will heal her. She will also have two special abilities; for the first one, she will crouch, cover herself with a Siphon and summon various Blood reavers. Any damage that was supposed to be dealt to her will heal her instead. She will also demand a "Blood sacrifice", in which a player will turn red (effects unknown). After she reaches 2/5th of her life points and her mage Cruor is killed, she will go to the next phase.

Ice phase: During this phase, she will use Ice spells which will target all the players and freeze them. However, they don't do much damage if Protect from/Deflect magic is active. Her special attack will lock a player in an ice prison with ice stalagmites that will surround the player. Any other players that are standing in the stalagmite will be dealt damage. After she reaches 1/5th of her life points and her mage Glacies is killed, she will go to the last phase.

Final phase: During this phase, she will activate Turmoil and Soul Split. She will also alternate between Deflect melee and no protection prayer. She will have increased Attack, Strength and Defence during this stage. Her magic attack will also hit as much as it was during the beginning of the battle. However, she will not have any special attack. After Nex is killed, she will activate Wrath. Her wrath has a bigger radius than the curse available to players.

100% drop

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Weapons and armour

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Herbs and seeds

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Other

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Trivia

 * "Nex" is Latin for "murder" or "death";
 * All of Nex's guards have Latin names related to the kind of Ancient Magicks spell they use.
 * The plaque memorial in the safe and banking area reads: Vita brevis breviter in brevi finietur, Mors venit velociter quae neminem veretur, Omnia mors perimit et nulli miseretur, which is Latin for: "Life is short, it will end in a short time. Death comes quickly and respects no one. Death annihilates all and has pity on no one." This phrase is strongly connected to the phrase "memento mori", which means "remember your mortality."
 * The room layout is the symbol of Zaros.
 * Nex is one of only two bosses in the dungeon that can farcast their ranged/magic attacks, the other being Kree'arra.
 * Nex is one of only two bosses in the dungeon that can attack from all three corners of the combat triangle, the other being Kree'arra.
 * She is the first monster in RuneScape to have a combat level over 1000. She is also the only non-quest boss outside of Daemonheim that can be attacked with a left-click.
 * With 30,000 lifepoints she takes over the lead of the monster with the highest life points. The previous was the Corporeal Beast with 20,000.
 * Nex is the only monster that drops Treasure Trails rewards as a drop, which is the Ancient armour set. Nex is also the only monster that drops an armour set.
 * Nex is the fourth monster to drop the dragon boots and the first monster to drop multiple dragon boots.
 * Nex and Kal'Ger the Warmonger both use a damaging attack upon death; Nex uses Wrath, while Kal'Ger uses a flame wave.