Lagon, the colossal, water-bound deity, is a significant hurdle in Last Epoch, often presenting a steep challenge to players progressing through the campaign Last Epoch Gold. 

Understanding Lagon's Arsenal

Lagon's fight is split into two distinct phases, each requiring a different approach:

Phase 1: The Hand Phase

In this phase, Lagon remains submerged, only his massive hands emerging to attack. These hands unleash a variety of abilities:

Crushing Blow: Lagon forcefully strikes his hand onto the platform, inflicting substantial physical damage over a broad area. The point of impact is distinctly indicated, providing you with an opportunity to avoid it.
Wave Surge: Lagon unleashes a torrent of water that crashes onto the platform. This surge inflicts considerable cold damage and has the potential to push you back. Remain agile and maneuver through the wave.
Lightning Spears: Lagon conjures stationary lightning spears that launch bolts of lightning towards you. These spears remain for a certain period and can quickly become overwhelming if not addressed. It is imperative to prioritize their destruction as swiftly as possible.

Phase 2: The Head Phase

Once you've depleted Lagon's health bar in Phase 1, he emerges from the water, revealing his true form. This phase focuses more on dealing sustained damage while avoiding his devastating attacks:

Eye Beam: Lagon fires a powerful laser beam from his eye, dealing massive lightning damage in a cone. This beam is telegraphed early, and you must strafe quickly to avoid it.
Tidal Wave: Lagon summons a large tidal wave that sweeps across the platform, dealing heavy cold damage. Unlike the smaller waves in Phase 1, this wave covers the entire platform. You need to use a movement skill (like Teleport or Lunge) at the right moment to become invulnerable and pass through it.
Lightning Storm: Lagon summons a localized lightning storm that drops bolts of lightning around the platform. These bolts deal moderate lightning damage, making it crucial to maintain mobility and avoid standing in the targeted areas.

Strategies for Success

Mobility is Crucial: Both stages of the Lagon encounter require continuous movement. It is important to prioritize equipment with Movement Speed attributes and select a build that provides effective mobility skills. Skills such as Teleport, Lunge, or a precisely timed dodge roll can be beneficial for successful evasion.
Resistances are Vital: Concentrating on maximizing your Lightning and Cold resistances will greatly diminish the damage inflicted by Lagon's most powerful attacks. Seek these resistances in your equipment and contemplate utilizing blessings to enhance your defenses further.
Damage Output: An effective single-target damage build is essential for swiftly transitioning between phases and efficiently inflicting damage on Lagon's head. Skills capable of targeting and rapidly destroying the lightning spears in Phase 1 are also advantageous.
Minion Management (For Minion Builds): If you are utilizing a minion-oriented class, ensure that your minions possess sufficient durability to withstand Lagon's area-of-effect attacks. Consider skills or equipment that enhance minion health and resistances.

Build Recommendations

While almost any well-optimized build can defeat Lagon, some archetypes excel in this fight:

Marksman with Puncture/Flurry: The Marksman's mobility and high single-target damage make them well-suited for dodging Lagon's attacks and quickly bursting down his health.
Spellblade with Lightning Nova/Disintegrate: The Spellblade's ability to stack defensive layers while unleashing powerful spells allows them to withstand Lagon's onslaught and deal consistent damage.
Beastmaster with Wolves/Sabertooth: A well-geared Beastmaster with durable pets can deal significant sustained damage while you focus on dodging and weaving through attacks.

Last Epoch Gold: Gearing Up for the Fight

Preparing for the Lagon fight often requires upgrading your gear to optimize your resistances and damage output. This is where Last Epoch Gold comes into play.

Crafting: Utilize your Last Epoch Gold to acquire crafting materials and enhance your current equipment at the Forge. Concentrate on incorporating resistance affixes and increasing your damage statistics.
Trading: Take advantage of the Merchant's Guild system to engage in trades with fellow players. Your Last Epoch Gold can be employed to buy particular items that possess the necessary resistances and affixes to finalize your build.
Idols: Both crafting and acquiring the appropriate idols can significantly enhance resistances and provide additional damage, particularly if you are working within a limited budget buy Last Epoch Gold.

Lagon is a challenging boss in Last Epoch, but with the right preparation, strategy, and a bit of practice, he can be defeated. Remember to prioritize mobility, resistances, and a build that can deal consistent damage.