{
"ac": 43,
"alignment": "CE",
"breadcrumbs_spa": [],
"category": "creature",
"charisma": 7,
"constitution": 10,
"creature_ability": [
"Aura of Annihilation",
"Unkillable",
"Constrict",
"Eat Away",
"Engulf",
"Tentacular Burst"
],
"creature_family_markdown": "",
"dexterity": 9,
"exclude_from_search": false,
"fortitude_save": 39,
"hp": 380,
"hp_raw": "380 ( fast healing 30 , negative healing )",
"id": "creature-876",
"image": [
"/Images/Monsters/Iffdahsil.png"
],
"immunity": [
"blinded",
"controlled",
"critical hits",
"deafened",
"death effects",
"disease",
"paralyze",
"poison",
"precision",
"sleep",
"unconscious"
],
"immunity_markdown": "[blinded](/Conditions.aspx?ID=1), [controlled](/Conditions.aspx?ID=6), critical hits, [deafened](/Conditions.aspx?ID=8), [death](/Traits.aspx?ID=40) effects, [disease](/Traits.aspx?ID=46), [paralyze](/Conditions.aspx?ID=28), [poison](/Traits.aspx?ID=126), precision, [sleep](/Traits.aspx?ID=145), [unconscious](/Conditions.aspx?ID=38)",
"intelligence": 0,
"language": [
"Aklo",
"Necril"
],
"language_markdown": "[Aklo](/Languages.aspx?ID=13), [Necril](/Languages.aspx?ID=20)",
"level": 21,
"markdown": "[Iffdahsil](/Monsters.aspx?ID=876)\r\n\r\n\r\n\r\n\r\n\r\nThe slithering horror known as Iffdahsil is an undead [shoggoth](/Monsters.aspx?ID=368) that has haunted the vault of the Black Desert for millennia. [Drow](/MonsterFamilies.aspx?ID=37) legends in particular tend to feature Iffdahsil, terrifying the elves from a young age.\r\n\r\n\r\n**[Recall Knowledge - Aberration](/Rules.aspx?ID=563)**\r\n([Occultism](/Skills.aspx?ID=11)): DC 52\r\n\r\n**[Recall Knowledge - Undead](/Rules.aspx?ID=563)**\r\n([Religion](/Skills.aspx?ID=13)): DC 52\r\n\r\n**[Unspecific Lore](/Rules.aspx?ID=563)**: DC 50\r\n\r\n**[Specific Lore](/Rules.aspx?ID=563)**: DC 47\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n[Iffdahsil](/Monsters.aspx?ID=876)\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n**Source** [Pathfinder #155: Lord of the Black Sands](/Sources.aspx?ID=33) pg. 81\n\n**Perception** +38; [darkvision](/MonsterAbilities.aspx?ID=12), [lifesense (imprecise) 60 feet](/MonsterAbilities.aspx?ID=21), [scent (imprecise) 60 feet](/MonsterAbilities.aspx?ID=33), [tremorsense (imprecise) 60 feet](/MonsterAbilities.aspx?ID=40)\r\n\r\n**Languages**\r\n[Aklo](/Languages.aspx?ID=13), [Necril](/Languages.aspx?ID=20)\r\n\r\n**Skills**\r\n[Athletics](/Skills.aspx?ID=3) +40, [Intimidation](/Skills.aspx?ID=7) +36\r\n\r\n\r\n**Str** +11\r\n\r\n**Dex** +9\r\n\r\n**Con** +10\r\n\r\n**Int** +0\r\n\r\n**Wis** +8\r\n\r\n**Cha** +7\r\n\n\n\r\n\r\n---\r\n\r\n\r\n\r\n\r\n**AC** 43 [all-around vision](/MonsterAbilities.aspx?ID=1)\r\n\r\n**Fort** +39 \r\n\r\n**Ref** +36 \r\n\r\n**Will** +35 \r\n\r\n+1 status to all saves vs. magical effects\r\n\r\n\r\n**HP** 380\r\n([fast healing 30](/MonsterAbilities.aspx?ID=15), [negative healing](/MonsterAbilities.aspx?ID=42))\n\n**Immunities**\r\n[blinded](/Conditions.aspx?ID=1), [controlled](/Conditions.aspx?ID=6), critical hits, [deafened](/Conditions.aspx?ID=8), [death](/Traits.aspx?ID=40) effects, [disease](/Traits.aspx?ID=46), [paralyze](/Conditions.aspx?ID=28), [poison](/Traits.aspx?ID=126), precision, [sleep](/Traits.aspx?ID=145), [unconscious](/Conditions.aspx?ID=38)\r\n\r\n**Resistances**\r\nacid 20, cold 20, physical 15 (except magical silver), sonic 20\r\n\r\n**Weaknesses**\r\ngood 20\r\n\r\n**Aura of Annihilation** ([aura](/Traits.aspx?ID=206), [necromancy](/Traits.aspx?ID=117), [occult](/Traits.aspx?ID=120)) 60 feet, DC 45. A creature entering or starting its turn in the aura that fails at a Fortitude save becomes [doomed 1](/Conditions.aspx?ID=9) and [drained 1](/Conditions.aspx?ID=10). If the target was already doomed or drained, the values of these conditions increase by 1, to a maximum of doomed 3 and drained 3. A creature that dies while doomed 3 and drained 3 in this way disintegrates into black sand. **Unkillable** ([necromancy](/Traits.aspx?ID=117), [occult](/Traits.aspx?ID=120)) Unlike most undead, Iffdahsil isn't destroyed at 0 HP. Iffdahsil's fast healing continues to function normally, though on any round it begins its turn at 0 HP, it is [enfeebled 4](/Conditions.aspx?ID=13) and [slowed 1](/Conditions.aspx?ID=35) until the start of its next turn. While Iffdahsil is at 0 HP, it can be killed permanently only by simultaneously exposing it to direct sunlight (or a 10th-level [_sunburst_](/Spells.aspx?ID=326) spell) and casting a [_miracle_](/Spells.aspx?ID=196) or [_wish_](/Spells.aspx?ID=377) spell (or similar magic) directed at destroying it.\r\n\r\n\r\n\r\n---\r\n\r\n\r\n\r\n**Speed** 40 feet, burrow 40 feet, climb 25 feet\r\n\r\n**Melee**\r\n\r\npseudopod +38 ([Magical](/Traits.aspx?ID=103), [reach 30 feet](/Traits.aspx?ID=192)),\r\n**Damage** 5d10+21 piercing plus [Grab](/MonsterAbilities.aspx?ID=18)\r\n\r\n**Occult Innate Spells** DC 42\r\n- **7th**\r\n[Hallucinatory Terrain](/Spells.aspx?ID=145)\r\n- **8th**\r\n[Disappearance](/Spells.aspx?ID=73) (at will; self only), [Hallucination](/Spells.aspx?ID=144)\r\n- **9th**\r\n[Overwhelming Presence](/Spells.aspx?ID=212)\r\n\r\n**[Constrict](/MonsterAbilities.aspx?ID=10)** 3d10+17 piercing\r\n\r\n**Eat Away** A creature that begins its turn inside Iffdahsil takes 10d6 negative damage. Iffdahsil gains temporary HP for 1 minute equal to half the damage dealt.\r\n\r\n**[Engulf](/MonsterAbilities.aspx?ID=14)** DC 43, 10d6 negative, Escape DC 43, Rupture 45\r\n\r\n**Tentacular Burst** Iffdahsil deals 8d8 piercing damage to each creature in a 10-foot emanation (DC 43 basic Reflex save) and can also attempt to [Grab](/MonsterAbilities.aspx?ID=18) any creatures who critically fail their save as a free action. Iffdahsil is then [flat-footed](/Conditions.aspx?ID=16) until the start of its next turn.\r\n\r\n\r\n\r\n",
"name": "Iffdahsil",
"npc": false,
"perception": 38,
"rarity": "unique",
"reflex_save": 36,
"release_date": "2020-05-27",
"resistance": {
"acid": 20,
"bludgeoning": 15,
"cold": 20,
"physical": 15,
"piercing": 15,
"slashing": 15,
"sonic": 20
},
"resistance_markdown": "acid 20, cold 20, physical 15 (except magical silver), sonic 20",
"resistance_raw": "acid 20, cold 20, physical 15 (except magical silver), sonic 20",
"search_markdown": "\r\n\r\n\r\n\r\n\r\n\r\n\r\n**Source** [Pathfinder #155: Lord of the Black Sands](/Sources.aspx?ID=33) pg. 81\n\n\r\n**HP** 380 ( fast healing 30 , negative healing )\r\n\r\n**AC** 43\r\n\r\n**Fort** +39\r\n\r\n**Ref** +36\r\n\r\n**Will** +35\r\n\r\n**Perception** +38\r\n\r\n\r\n\r\n---\r\n\r\n\r\nThe slithering horror known as Iffdahsil is an undead shoggoth that has haunted the vault of the Black Desert for millennia. Drow legends in …\r\n",
"sense": " darkvision , lifesense (imprecise) 60 feet , scent (imprecise) 60 feet , tremorsense (imprecise) 60 feet ",
"sense_markdown": "[darkvision](/MonsterAbilities.aspx?ID=12), [lifesense (imprecise) 60 feet](/MonsterAbilities.aspx?ID=21), [scent (imprecise) 60 feet](/MonsterAbilities.aspx?ID=33), [tremorsense (imprecise) 60 feet](/MonsterAbilities.aspx?ID=40)",
"size": [
"Gargantuan"
],
"skill": [
"Athletics +40",
"Intimidation +36"
],
"skill_markdown": "[Athletics](/Skills.aspx?ID=3) +40, [Intimidation](/Skills.aspx?ID=7) +36",
"source": [
"Pathfinder #155: Lord of the Black Sands"
],
"source_raw": [
"Pathfinder #155: Lord of the Black Sands pg. 81"
],
"source_category": "Adventure Paths",
"source_group": "Extinction Curse",
"source_markdown": "[Pathfinder #155: Lord of the Black Sands](/Sources.aspx?ID=33) pg. 81",
"speed": {
"burrow": 40,
"climb": 25,
"land": 40,
"max": 40
},
"speed_markdown": "40 feet, burrow 40 feet, climb 25 feet",
"speed_raw": "40 feet, burrow 40 feet, climb 25 feet",
"spell": [
"Overwhelming Presence",
"Disappearance",
"Hallucination",
"Hallucinatory Terrain"
],
"spell_markdown": "[Disappearance](/Spells.aspx?ID=73), [Hallucination](/Spells.aspx?ID=144), [Hallucinatory Terrain](/Spells.aspx?ID=145), [Overwhelming Presence](/Spells.aspx?ID=212)",
"spoilers": "Extinction Curse",
"strength": 11,
"strongest_save": [
"fort",
"fortitude"
],
"summary": "The slithering horror known as Iffdahsil is an undead shoggoth that has haunted the vault of the Black Desert for millennia. Drow legends in …",
"summary_markdown": "The slithering horror known as Iffdahsil is an undead shoggoth that has haunted the vault of the Black Desert for millennia. Drow legends in …",
"text": " Iffdahsil The slithering horror known as Iffdahsil is an undead shoggoth that has haunted the vault of the Black Desert for millennia. Drow legends in particular tend to feature Iffdahsil, terrifying the elves from a young age. Recall Knowledge - Aberration (Occultism): DC 52 Recall Knowledge - Undead (Religion): DC 52 Unspecific Lore : DC 50 Specific Lore : DC 47 Iffdahsil Source Pathfinder #155: Lord of the Black Sands pg. 81 Perception +38; darkvision, lifesense (imprecise) 60 feet, scent (imprecise) 60 feet, tremorsense (imprecise) 60 feet Languages Aklo, Necril Skills Athletics +40, Intimidation +36 Str +11 Dex +9 Con +10 Int +0 Wis +8 Cha +7 --- AC 43 all-around vision Fort +39 Ref +36 Will +35 +1 status to all saves vs. magical effects HP 380 (fast healing 30, negative healing) Immunities blinded, controlled, critical hits, deafened, death effects, disease, paralyze, poison, precision, sleep, unconscious Resistances acid 20, cold 20, physical 15 (except magical silver), sonic 20 Weaknesses good 20 Aura of Annihilation (aura, necromancy, occult) 60 feet, DC 45. A creature entering or starting its turn in the aura that fails at a Fortitude save becomes doomed 1 and drained 1. If the target was already doomed or drained, the values of these conditions increase by 1, to a maximum of doomed 3 and drained 3. A creature that dies while doomed 3 and drained 3 in this way disintegrates into black sand. Unkillable (necromancy, occult) Unlike most undead, Iffdahsil isn't destroyed at 0 HP. Iffdahsil's fast healing continues to function normally, though on any round it begins its turn at 0 HP, it is enfeebled 4 and slowed 1 until the start of its next turn. While Iffdahsil is at 0 HP, it can be killed permanently only by simultaneously exposing it to direct sunlight (or a 10th-level sunburst spell) and casting a miracle or wish spell (or similar magic) directed at destroying it. --- Speed 40 feet, burrow 40 feet, climb 25 feet Melee Single Action pseudopod +38 (Magical, reach 30 feet), Damage 5d10+21 piercing plus Grab Occult Innate Spells DC 42 - 7th Hallucinatory Terrain - 8th Disappearance (at will; self only), Hallucination - 9th Overwhelming Presence Constrict Single Action 3d10+17 piercing Eat Away A creature that begins its turn inside Iffdahsil takes 10d6 negative damage. Iffdahsil gains temporary HP for 1 minute equal to half the damage dealt. Engulf Two Actions DC 43, 10d6 negative, Escape DC 43, Rupture 45 Tentacular Burst Two Actions Iffdahsil deals 8d8 piercing damage to each creature in a 10-foot emanation (DC 43 basic Reflex save) and can also attempt to Grab any creatures who critically fail their save as a free action. Iffdahsil is then flat-footed until the start of its next turn. Mysterious Origins Iffdahsil's path to undeath is unknown. Many believe Iffdahsil can consume and incorporate the souls and minds of its victims, which might explain its spellcasting powers and relatively advanced intellect, though this also gives rise to more unanswerable questions about its horrific nature and unknowable goals. ",
"trait": [
"Aberration",
"Undead",
"Unique",
"CE",
"Gargantuan"
],
"trait_markdown": "[Aberration](/Traits.aspx?ID=1), [Undead](/Traits.aspx?ID=160), [Unique](/Traits.aspx?ID=161)",
"trait_raw": [
"Aberration",
"Undead",
"Unique"
],
"type": "Creature",
"url": "/Monsters.aspx?ID=876",
"vision": "Darkvision",
"weakest_save": [
"will"
],
"weakness": {
"good": 20
},
"weakness_markdown": "good 20",
"weakness_raw": "good 20",
"will_save": 35,
"wisdom": 8
}