Editing Diabolus

{{Biotech}}

{{Image wanted|reason=Fire burst gizmo}}

{{Infobox main|none

| description = An ultra-heavy mechanoid with an ultra-powerful hellsphere cannon. Made for siegebreaking, its hellsphere cannon takes time to charge up a shot, but can melt concrete and vaporize bone. The diabolus dissipates the hellsphere cannon's waste power in a heat column mounted on its back, which can pulse to ignite flammable objects nearby. <br/>This mech's name comes from a thousand-year-old poem written by a Haspian monk who survived the erasure of his monastery. His religiously-tinged work describes a razor-bodied fiend pulsing with flesh-searing heat as it crushed scorched bodies under massive claws. The few who have faced a diabolus and survived tend to agree with this depiction.

A '''diabolus''' (pl. '''diaboli'''){{Ref label|Plural|1}} is a [[mechanoid commander]] added by the [[Biotech DLC]]. It drops the [[signal chip]], required to research further [[mechanitor]] technology.

 

One or more diaboli can spawn in mechanoid raids when sufficient [[raid point]]s are available for them, however they are also involved in the [[mechanitor]] progression and can be specifically summoned by the player.

Summoning a diabolus requires a [[mechanitor]] and a powered [[comms console]]. Constructing a comms console requires the [[Research#{{Q|Comms console|Required Research}}|{{Q|Comms console|Required Research}}]] research. Unlike the buildings used to summon the other mechanoid commanders, the console is not consumed in the process.

When summoned, it will be accompanied by other mechanoids. The amount of other mechanoids depends on how many times you have summoned a diabolus before, and is independent of wealth, time, or colony progress. Eventually, you'll have to face multiple diaboli at the same time. They will crash down in a ship after a random amount of time ranging from a few in game hours to days. They will not attack immediately, but will instead act like a raid and "prepare" before launching their assault. The maximum size is reached after summoning the diabolus 8 times.

Like the other mechanoid bosses, after being summoned 8 times, the next summon will be the same as wave 6. The wave count is per playthrough, not per colony or map. If the Diabolus is summoned once on one map, summoning another on a second map will bring the second wave. [[Endings#The_Archonexus|The Archonexus]] colony reset does reset this progression.

Diaboli can be gestated by a [[mechanitor]] at a [[{{P|Production Facility 1}}]] once the [[Research#{{P|Required Research}}|{{P|Required Research}}]] research project has been completed. They require {{Required Resources}} and {{P|Gestation Cycles}} [[gestation cycle]]s taking {{Ticks|1800}} each to initiate. They take up {{P|Bandwidth}} [[bandwidth]] from their linked mechanitor.

Dead, friendly diaboli can also be resurrected at the {{lc:{{P|Production Facility 1}} }} using the "''Resurrect ultraheavy mechanoid''" bill. This requires the corpse of the friendly diabolus, {{Icon Small|Steel||150}} [[steel]], and 1 [[gestation cycle]] taking {{Ticks|1800}} to initiate.

The diabolus is an ultra-heavy mechanoid. {{Mechanoid Summary}} Diaboli have a 60% [[EMP]] resistance, meaning they are stunned for 60% less time.

Dead diaboli may be shredded at the [[machining table]] or [[crafting spot]] for {{Icon Small|Steel||50}} [[steel]] and {{Icon Small|Plasteel||20}} [[plasteel]]. However, these values are affected by [[Mechanoid Shredding Efficiency|mechanoid shredding efficiency]], as well as missing parts on the diabolus.

# [[Hellsphere cannon]]. When using this attack, diabolus will create a red circle around a target. This circle indicates where Diabolus is aiming. It is to be noted that unlike unlike almost every other weapon, the Hellsphere cannon will not track it's target while aiming and will instead keep aiming at the same spot. After a {{Ticks|450}} warmup, the cannon fires an extremely fast explosive projectile, which upon exploding will leaving a large radius of [[fire]]. The blast is slightly larger than the visual circle, so err on the side of caution. This attack only has a range of {{Q|Hellsphere cannon|Range}} tiles, but also has a minimum range of {{Q|Hellsphere cannon|Minimum Range}} tiles.

#* The explosive projectile deals ''{{Q|Hellsphere cannon|Damage Base}}'' [[Damage_Types#Vaporize|Vaporize]] damage, increased to {{#expr:{{Q|Hellsphere cannon|Damage Base}}*2}} damage against passable structures and {{#expr:{{Q|Hellsphere cannon|Damage Base}}*4}} damage against impassable structures. As an explosive, it ignores cover and has 100% accuracy. This checks Heat armor, but has a massive {{Q|Hellsphere cannon|Armor Penetration}}% {{AP}}. However, due to the fact that Vaporise damage does not overflow, the majority of this damage often ends up overkilling just one or 2 body parts, leading to much lower effective damage output

#* Unlike other ranged weapons, once initialized, it will continue to fire, even if the diabolus is engaged in melee in the meantime. Engaging in melee will prevent ''future'' shots being initialized, but will trigger the flame burst discussed below.

Diaboli have the ability to emit a "fire burst". Over a few seconds,{{Check Tag|Detail needed}} it surrounds itself in roughly 5.9 tile radius of flammable [[Filth#Chemfuel puddle|chemfuel puddles]]. Once complete, it releases a [[Damage Types#Flame|Flame]] explosion of the same radius, dealing damage and igniting the puddles.{{Check Tag|Details needed|What is the damage of this attack? Confirm damage type. Does it have AP?}} Enemy diaboli will trigger the burst when engaged in melee, even by enemies that are immune to fire like other mechanoids. Friendly diaboli must have their fire burst manually triggered by the player,{{Check Tag|Verify}} and have both a 3 second warmup{{Check Tag|Verify friendly only|Verify that this time doesn't apply to hostile diaboli}} and a {{Ticks/gametime|2700}} cooldown after use.{{Check Tag|Verify friendly only|Verify that this time doesn't apply to hostile diaboli}}  

Kiting and spreading out is key to taking out the Diabolus. The biggest threat is by far its Hellsphere cannon, which can instakill almost anyone and anything. For reference, a pawn with the [[Tough]] trait, [[Genes#Resistance_and_sensitivity|fire resistant gene]], and wearing a legendary [[duster]], [[formal vest]] {{RoyaltyIcon}} / [[corset]] {{RoyaltyIcon}}, and [[button down shirt]] made of [[devilstrand]] still has a 28% chance of immediately dying from torso damage. Players should instead prioritize avoiding the shot in any way possible, either by moving pawns out of the way, staying out of range, or by being too close to target with the cannon.

Melee can be an effective tactic. But with fire vulnerable pawns, it is ''highly'' advised to NOT use melee attacks, due to the close-ranged burst. Sufficient fire protection ([[devilstrand]] clothing, [[phoenix armor]],{{RoyaltyIcon}} [[impids]]' fire resistance) can help tank the flames, and your own mechanoids are completely immune to fire. [[Firefoam]] makes your organic pawns immune to being lit on fire, but heat damage still applies.

=== When you should fight ===

 

* Spread out. Have each militor close enough to the enemies, and labor mechs ready to melee. Ideally, only 1 mech is in the hellsphere blast at a time.

* Have your mechanitor & militors focus fire each enemy militor until they die. The faster the small mechs die, the less damage you'll sustain.  

* Have each labor mech melee a separate enemy. Militors in melee cannot fire their guns, reducing damage accordingly.

* With the diabolus inefficiently firing hellspheres / flame bursts at your mechanoids, take it down. The pulse turret can still hurt, especially for the labor mechs, but it should die.

== Analysis - As an ally ==

Slow and with a little more health & armor than a [[Centipede]], diaboli are best used against stationary threats like [[siege]]s, [[mech cluster]]s,{{RoyaltyIcon}} and other mech commanders as well as centipedes. The [[charge blaster turret]] is more of a gimmick, when the Diabolus slowly closes distance. It's faster than a Centipede, but not a lot: a speed of 2.4 c/s compared to 1.9 c/s.

{{Animal Health Table|Mech_Diabolus}}

* [[Version/1.4.3531|1.4.3531]] - Increased EMP resistance from 30% to 60%. Added alert for incoming bossgroup. Fix: Bossgroup mechs do not attack if mechanoid faction is disabled.

* [[Version/1.4.3541|1.4.3541]] - Fix: When the mechanoid faction is disabled, mech bosses will not attack pawns.

* [[Version/1.4.3555|1.4.3555]] - Now immune to [[psychic shock lance|psychic]] [[psychic insanity lance|lances]]. Super-mechanoids cannot be called when there is already another super-mechanoid on the way.

{{Nav|mechanoid|wide}}

{{Note|Plural|1}} - Cynapse - Ludeon Developer, Rimword Official Development Discord 22 Jan 2023