Leviathan, Spire of Stars

Leviathan, Spire of Stars is a Raid Lair that was introduced in the Warmind Expansion, and released on the 8th of May, 2018. It requires a team of Guardians to enter the Leviathan, where they will enter the tower atop the massive world-eating vessel, so that they can repel a Red Legion assault on the ship, led by Val Ca'uor.

Bosses

 * Val Ca'uor

Statue Garden
Once the fireteam has spawned into the raid lair, you must jump into a central area of the map, known as the "statue garden". In the direct center of the area is a large flaming cauldron, in which an engulfed orb must be thrown to activate the encounter. Arrange your fireteam into 2 groups of three; three guardians on the top section of the map, and three on the bottom. (For this guide, top is considered the area by the water, while the bottom is considered the area closer to the spawn point and drop off). Around the arena are 4 pillars. These pillars must be raised fully, and kept raised or else the team will wipe. In order to fully raise a pillar, a guardian must stand on it with an orb. If a player jumps on without an orb, they will receive the engulfed debuff. If a player acquires this debuff, they must catch a charged or uncharged orb within 15 seconds, or they will die. The orb spawns in the center of the top portion of the map. Before starting, assign 4 players to their own pillar, and two "flex players" (who will relay the orb between pillars if needed and help kill enemies in the playing area). The top flex player will pick up the orb, toss it to one of the top pillars, who will then engulf the ball and throw it at the center cauldron. The pillars will then lower, the area will become a restricted zone and the encounter will officially start. The top flex will once again pass the orb to (preferably) the same pillar, who will then engulf the orb and stand on their pillar, until it is completely raised. Once raised, this player will then pass the orb to the next player in the rotation. It is important to note that the orb can be passed either clockwise or counterclockwise, so long as every player receives it, and raises their pillar up. Eventually, high value targets will spawn (centurions on the first phase, gladiators on the second and colossus on the third), and the shield around the cauldron will lower. A message will indicate this is the bottom left corner, stating "Shield Lowered". At this point, the orb should be passed to whoever is fourth in the rotation (fourth pillar player to receive the charged orb), and they need to throw the orb into the center cauldron, as fast as possible, in order to continue. Repeat this process twice more to receive your loot (shaders, a legendary engram and the "I'm Open!" emote, upon first completion of the encounter)

Repel the Assault
Shoot everyone.

Val Ca'uor
This encounter expands upon the mechanics of the Repel the Assault encounter.

Rewards

 * Emperor Calus Tokens
 * Spire Star Emblem
 * Grind Underfoot Emblem
 * Together, for Glory! Emblem
 * Praetorian Visage Shader
 * Calus's Shadow Shader (Prestige only)
 * Raid Lair-specific armor sets
 * Raid Lair-specific ornaments (Prestige only)
 * Sleeper Simulant Catalyst (Prestige only)
 * Contender's Shell

Weapons

 * The Emperor's Envy - Fusion Rifle
 * Last of the Legion - Sidearm

Trivia

 * Spire of Stars is the first Raid activity to feature an actual Cabal as a boss. The Emperor Calus boss fought at the end of the Leviathan raid was a proxy robot.
 * The encounter against Val Ca'uor features the most mechanics out of any encounter in any Raid or Raid Lair.