Mithrix

Mithrix is the final boss of the game found in Commencement, the final stage.

Phase 1
Mithrix will start by doing his basic attacks, which consists of running around, teleporting at you with his hammer, smashing the ground with his hammer to cause a shock-wave, and shooting you with needles similar to that of the Visions of Heresy. His more advanced attack is jumping into air of the center of the stage and slamming down, causing a 360 shock-wave around the stage. The wave ends when it reaches the thin line made of rocks between the platform where he is first seen and the outer platform with a small slope.

Phase 2
Terrain changes (several stone pillars rise up) and several Lunar Chimera Golems and Lunar Chimera Wisps are summoned which must be defeated. Mithrix is not present during this phase while new chimeras are occasionally summoned.

Phase 3
Mithrix comes back with more powerful and different attacks, occasionally summoning Lunar Chimera Golems. His moveset is similar to the one in the first phase but the attacks have other effects to them. He also gets more aggressive and attacks more often. His slam will leave a lingering pillar of flames that will damage the player if they walk into it. After he lands from the jump he will summon moving lines of flame that spin around him and explode after a while, disappearing to make place for new ones. After a few rotations, he will get up and begin attacking with his melee again.

Phase 4
Mithrix steals all players' items and gains their buffs. Hitting him gives some items back. He will fire a burst of projectiles similar to those fired by using Visions of Heresy and slowly stomp around the battlefield. He occasionally kneel and fire fast travelling orbs in 8 directions.

Aftermath
Once Mithrix is defeated all taken items are returned, but the Moon will begin a detonation sequence with an on-screen countdown. A shuttle will fly in along with a pair of TC-280 drones, and the surviving players have 4 minutes to get to the shuttle in order to escape. Sporadically, lines of flames will appear, similar to the columns used by some of Mithrix' attacks. Void Reavers will also spawn and attack the player.

Successfully making it to the shuttle will complete the Washed Away challenge and unlock the Captain as a playable Survivor.

Tips

 * Mithrix will take but not use any during phase 4.
 * Mithrix will not take during phase 4.
 * Mithrix will not take some Equipment, such as the, during phase 4.
 * Mithrix cannot take any items from currently placed Engineer turrets during phase 4.
 * Make sure to invest in basic mobility items for the aftermath/escape. Time will be fairly tight.

Dialogue
Mithrix will also speak during the fight. His lines can be seen in the chat box.

Toggle Dialogue Spawning
 * Pray.
 * Beg.
 * Die.
 * Be slaughtered.

Dealing damage (early phases)
 * Bleed.
 * Now is the time for fear.
 * Weak.
 * Frail - and soft.
 * You are nothing.
 * Mistake.
 * Scream, vermin.
 * Break beneath me.
 * Slow.
 * Your body will shatter.

Dealing damage (late phases)
 * BLEED.
 * SCREAM.
 * WHERE'S YOUR INFLUENCE?
 * FLEETING STRENGTH.
 * FRAIL.
 * BREAK.
 * FALSE STRENGTH.
 * DRAIN.
 * DIE, VERMIN.
 * WEAK, WITHOUT YOUR BAUBLES AND TRINKETS.

Player is killed (early phases)
 * Return to dirt.
 * Submit, vermin.
 * Die, vermin.
 * Die, weakling.
 * Become memories.

Player is killed (late phases)
 * DIE.
 * WEAK.
 * USELESS.
 * AS I THOUGHT...
 * VERMIN.

Mithrix is killed
 * NO... NOT NOW...
 * WHY... WHY NOW...?
 * NO... NO...!
 * BROTHER... HELP ME...!
 * THIS PLANE GROWS DARK... BROTHER... I CANNOT SEE YOU... WHERE ARE YOU...?
 * BROTHER... PERHAPS... WE WILL GET IT RIGHT... NEXT TIME...