Blue Baron (Boss Fight)

Cornered into the highest spire of his Citadel, the Blue Baron finds himself forced to engage Zan into combat, unleashing all his powers to slay the Bonebreaker, or at least delay her long enough for Nithriel's beacon to align and allow her to teleport to the mothership.

Unlike other bosses so far, the Blue Baron breaks away the fight by using his psionic powers to trick Zan into thinking that she had already lost, or that she is overwhelmed beyond any hope. The Blue Baron also has three forms, one in which he uses mind attacks, a flying one in which he uses ice attacks and an ethereal one in which he is invulnerable and the player needs to take cover behind Abhaoth's shields in order to avoid a deadly flurry of mind blasts.

### Traits

In his regular combat form, the Blue Baron can teleport around the arena, summon mirror images, cast a mind pulse knockback in melee range, cast a line-of-sight bound psychic shock attack that deals mind damage and cast a stream of mind blasts dealing mind damage. In flying form, he has the ability to phase shift around the arena, fire a stream of slime balls dealing ice damage and emit waves of icicles that also deal ice damage. In ethereal form, he has a ramping up mind blast onslaught attack dealing mind damage.

The Blue Baron is resistant to fire damage and vulnerable to ice damage.

The Blue Baron can block all ripper projectiles.

The Blue Baron does not infight (although he can take some damage from his own allies).

The Blue Baron is immune to the Time Shard's freezing effect.

The Blue Baron is fearless.

### Tactics

If the player has discovered the Ring of the Red Monk in Map18, they can combine it with a Potion of Might for devastating effects.

The Psi Crown is the only item that can protect against the Baron's mental attacks. The Elemental Ring and Bracer of the Revenant can protect against his ice attacks. Since consumables don't carry over after the end of the map, the player should make full use of their inventory.

After teleporting to a different spot in the arena, the Baron emits a particular growl that can allow the player to figure out his new position and avoid getting caught into a mind blast attack while exposed.

Unlike regular Psi Demons, the Baron summons mirror images that are capable of damaging the player with their attacks, so destroying the illusions should always be a top priority. However, much like in the Psi Demon's case, the mirror images are only summoned when the Baron enters his pain state, so the player should consider avoiding fast firing pain inducing weapons like the Paingun during his non-flying phases.

While playing on Bearzerk, the player should make use of the few mana motes present in the arena and keep summoning hail clouds using the Storm Staff to passively enhance their damage output or even chip the Baron's health pool while staying behind cover.

While in the main arena, the Baron is reinforced periodically, so the player should balance out focusing him with dispatching his minions to both avoid wasting time and resources and also not get overwhelmed.

During the endless sea phase, the player isn't required to fight any of the monsters, being able to simply rush to each of the three pillar switches and commence the next phase.

During the abyss fall phase, the player can use an Elemental Ring to significantly reduce the damage from the lava pools.