Orb of entropy

Trunk-only: This article pertains to a feature of Crawl which is being tested. It will likely change before the next release, and may even be removed entirely.

orb of entropy *
HP	99-200
HD	30
XP	4638
Speed	15
AC	20
EV	20
Will	Immune
Resistances	rF+ rC+ rAcid+++ rElec+++ rPois+++ rMiasma rN+++ rTorm rSticky
Vulnerabilities	None
Habitat	Land
Intelligence	Human
Uses	Uses nothing
Holiness	Non-living
Size	Little
Type	orb of entropy, orb of entropy
Flags	See invisible Flying Unbreathing Insubstantial

A globe of profound nothingness and the oblivion that awaits all things - flesh, souls, and even time itself. When the universe ends, only these will remain.

Useful Info

Orbs of entropy (or OOEs) are some of the nastiest foes to be faced in the Dungeon, capable of blasting unwitting adventurers with high-powered bursts of negative energy and acid damage. They can also rapidly inflict doom and banes.

They can be found within the Realm of Zot, especially in the Hall of Zot, where their presence is revealed by statues outside of the Temple and the entrance to Zot. They alternate with the orb of fire and orb of winter in each game. Regardless of which orb type you find in Zot, they can appear in negative-energy themed Ziggurat floors.

Spells

Spell set I
Slot1	Bolt of Draining (3d36)	Magical flag
Slot2	Acidball (3d38)	Magical flag
Slot3	Ill Omen	Magical flag

Strategy

Orbs of entropy can cause fights to spiral out of control, dealing heavy direct damage as well as inflicting long-term draining and banes which can complicate further encounters.

• Their Bolt of Draining can be fully resisted with rN+++, so strive to obtain maximum resistance.
  • Undead species get free immunity to their bolt of draining. However, Doom from their Ill Omen will be much harder to remove, and any Banes gained will be difficult to clear up in Zot.
• On the other hand, Acidball can only be 66% resisted, but only requires one rCorr item. Having at least a ring of corrosion resistance as a swap is advised.
• Ill Omen requires a line of fire to affect the player with Doom, so any sort of summon can block it. However, many summons are weak to Acidball, and Ill Omen can even afflict undead and nonliving summons with debuffs if they are Doomed enough.
• Orbs of entropy, despite being made of the essence of negative energy, are nonliving and not vulnerable to holy damage. They are still considered evil and will give some piety when killed while worshipping The Shining One.
• Orbs of entropy cannot open doors.

Tips & Tricks

• Silence is worthless against orbs of entropy.
• Compared to orbs of fire, orbs of entropy only have rF+ and rC+, but have acid immunity. Their high AC makes it difficult to damage them with low-power fire and ice magic spells, but it is possible.
  • Orbs of entropy are completely immune to electric, poison, and negative energy damage.
• Orbs of entropy can and will fire their damaging spells through one-another (Acidball requires you to be adjacent to the blocking monster). They can also fire Bolt of Draining through other negative energy-immune monsters like ancient liches.

History

• Orbs of entropy were added in 0.34