Baron Nashor is the most powerful neutral monster on Summoner's Rift in League of Legends. Killing Baron Nashor grants to all living teammates for 210 seconds. The buff gives bonus attack damage, bonus ability power, , and an aura that greatly increases the power of nearby minions.
The Journal of Justice clarifies this about Baron Nashor:
The many neutral monsters on the Fields of Justice are constructs inspired by real creatures from Runeterra. The Baron Nashor you see on the map is actually an incomplete facsimile of the true Baron Nashor, who is now the subject of myth and legend. The story goes that Baron Nashor was a ferocious worm that ruled the Serpentine River, which flows through Summoner’s Rift. He was such a fearsome and powerful beast that even the armies of Demacia and Noxus steered clear of the river, unwilling to chance an encounter with the Baron.
When Summoner’s Rift was constructed, the Baron vanished, leaving no conclusive evidence as to where he went or why he left in the first place. Obviously the rumor-mill has churned out many explanations, but all we know for sure is that the Senior Arcane Architect for the Summoner’s Rift arena was said to have crafted the version you see today from no more than a molted scale and interviews with those who had seen the beast and lived.
Historically, the forest where the Rift resides was the site of several battles between two summoner factions symbolized with the Stag and Owl crests, they sought out to use the natural magical energy of the area for their personal use.
The large amount of concentrated magic has mutated the local wildlife. From Voidborn largely believed to be dead for centuries., to it has also attracted the attention of a powerful who currently resides in one of the battle torn ruins. , and are creatures made from local flora and earth infused to construct a magical being. The Rifts unstable magic has inadvertently cause the reemergence of , a large Serpent/Worm
The following list displays the known set of abilities that Baron Nashor may perform. While not revealed in a player's Death Recap, their debuffs and animations are visible and distinctive, allowing players to work around them.
- Melee attacks: Baron Nashor deals 100% AD to all enemies within a 175-unit radius.
- Single-target rear Attack: Baron Nashor summons a spike from the ground that deals 100% AD damage and stuns his target for 1 second.
- Area-of-effect rear Attack: Baron Nashor summons a cluster of spikes from the ground, dealing 50% AD damage and stunning enemies hit for 1 second.
- Presence of the Baron: When Baron Nashor spawns, he will knock away all units, wards, and targetable traps to the edge of his pit. While Baron Nashor is still alive, he will continue to knock these back if more are placed.
- Crowd Control Immunity: Baron Nashor is immune to all forms of crowd control except stasis. Additionally, his stats cannot be reduced by any means.
- Baron's Gaze: Baron Nashor takes 50% reduced damage from the champion that he has most recently auto-attacked for 15 seconds.
- Voracious Corrosion: Baron Nashor's basic attacks apply a debuff that reduces the target's armor and magic resistance by 0.5, stacking up to 100 times for a total of 50 maximum reduction.
- Void Corruption: Baron Nashor periodically deals 30 (+ 5% AD) magic damage and applies a stack of Voracious Corrosion to the nearest champion with the lowest number of Voracious Corrosion stacks.
- Baron Nashor will activate an ability once every 6 auto attacks. Baron's first spell will be random. However, all spells after the first may be predicted; Baron Nashor's ability rotation is cyclical (ex. Acid Pool > Acid Shot > Tentacle Knockup > Acid Pool).
- Acid Pool: Baron Nashor spits out 3 pools of acid in a cone in front of him, dealing 10% AD magic damage to all champions hit and creating a field that slows targets' movement speed within the pool's radius.
- Acid Shot: Baron Nashor spits acid in a straight line, dealing 20% AD magic damage to all enemies it hits.
- Tentacle Knockup: After a brief delay, Baron Nashor knocks up all enemies at the target location dealing 25% AD magic damage to all enemies hit. Tremors will indicate the targeted location.
- Baron Nashor applies a debuff that greatly reduces a target's armor and magic resistance. This can potentially reduce a champion's armor/magic resistance to below zero, making them highly vulnerable to both types of damage lets a teamfight break out within the pit.
- Targeted dashes such as , , and initially move the Champion inside of Baron Nashor's model before being placed inside of his attack range.
- Baron Nashor is often a key objective in many games due to its massive gold bonus (+ 300/player) and global buff.
- Due to Baron Nashor's immense fighting power, slaying him should generally not be attempted until later into the game, and only with multiple teammates around to aid you.
- Soloing Baron Nashor is usually impossible. It is generally only feasible very late into the game with a champion who has immense sustainability, DPS, and tankiness; and even then it is not guaranteed. Most champions who are capable of soloing the Baron are bruisers or tanks such as , , , or . However, there are some exceptions; a skilled or player, for instance, has the ability to solo Baron with relative ease.
- Killing Baron Nashor with a team is fairly simple. Baron primarily attacks the target closest to him, so with proper positioning, a tank or bruiser can be made to take the brunt of the damage.
- The enemy team often has one or more wards placed inside of the Baron pit. If you do not clear these wards with the use of a or , they may attempt to contest Baron Nashor, which can be extremely dangerous for your team, as most of your teammates will likely be trapped inside of the Baron pit and/or weakened by the Baron's armor/magic resistance shred. Because of this, it is generally extremely risky to attempt to slay Baron Nashor while the majority of the enemy team is alive.
- Baron Nashor's
buff is given to the team that deals the killing blow on Baron. This means that even if one team is incapable of directly contesting the Baron head-on, a player can possibly swoop in and steal the Baron kill with a well-timed , , , or similar high-damage execute. This is almost definitely a suicide mission and is an extremely high-risk maneuver. However, successfully stealing Baron can turn the tide of a game dramatically. Some Champion's abilities, such as , however, can out-damage if she has enough stacks or even a well-timed fourth shot of .
- In the same vein, Champions possessing abilities (usually their ultimate) with a considerable range can attempt to do the same with less risk by dealing the killing blow from a distance. However, this is very difficult to properly execute, due to the near-perfect timing required upon the player's part and a usual requirement of vision inside of the Baron pit. While 'blind' Baron steals are feasible, they are extremely rare and unreliable. Some examples of abilities that can potentially steal the Baron from range include: , , , , , , , , , , , , , and .
- During Snowdown Showdown 2012, players can earn a summoner icon featuring Baron Nashor's main head with a santa hat on.
- Baron Nashor's name is a tribute to Roshan (his name being an anagram of Roshan), a monster filling a similar role in Defense of the Ancients.
- A box labeled 'Baron Acid' can be seen in the preview video for the launch of the League of Legends' Mac Version.
- In the Death Recap screen, Voracious Corrosion is labeled as 'WormAttack' and Wrath of the Ancients 'wrathdamage'.
- Brandon 'Ryze' Beck stated a Visual Update was coming for Baron Nashor, later revealed in A Twist of Fate and finally implemented when Summoner's Rift was too visually updated.
- Baron Nashor was revealed to be a Voidborn during Q&A (LAN server)
- He is the biggest Voidborn known
- Old Baron Nashor's skull was placed within his modern counterpart's pit in patch V5.7.