Fathomer

CreaturePotAp. 2072014

Medium humanoid, neutral evil

Armor Class
10, 13
Hit Points
52 (8d8 + 16)
Speed
30 ft.
Challenge
2 (450 XP)
STR
14
+2
DEX
11
+0
CON
14
+2
INT
11
+0
WIS
11
+0
CHA
15
+2
Skills
Arcana +2, Stealth +4, Perception +4
Senses
passive Perception 14
Languages
Aquan, Common

Traits

Shapechanger (2/Day).

The fathomer can use its action to polymorph into a Medium serpent composed of water, or back into its true form. Anything the fathomer is wearing or carrying is subsumed into the serpent form during the change, inaccessible until the fathomer returns to its true form. The fathomer reverts to its true form after 4 hours, unless it can expend another use of this trait. If the fathomer is knocked unconscious or dies, it also reverts to its true form.

While in serpent form, the fathomer gains a swimming speed of 40 feet, the ability to breathe underwater, immunity to poison damage, as well as resistance to fire damage and bludgeoning, piercing, and slashing damage from nonmagical attacks. It also has immunity to the following conditions: exhaustion, grappled, paralyzed, poisoned, restrained, prone, unconscious. The serpent form can enter a hostile creature's space and stop there. In addition, if water can pass through a space, the serpent can do so without squeezing.

Olhydra's Armor (Human Form Only).

The fathomer can cast mage armor at will, without expending material components.

Actions

Constrict (Serpent Form Only).

Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 9 (2d6 + 2) bludgeoning damage. If the target is Medium or smaller, it is grappled (escape DC 12). Until the grapple ends, the target is restrained, and the fathomer can't constrict another target.

Dagger (Human Form Only).

Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage.

Spellcasting

Spellcasting (Human Form Only).

The fathomer is a 5th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 12, +4 to hit with spell attacks). It has two 3rd-level spell slots, which it regains after finishing a short or long rest, and knows the following warlock spells:

Raw data
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    {
      "ac": 13,
      "braces": true,
      "condition": "with {@spell mage armor}"
    }
  ],
  "cr": "2",
  "hp": {
    "average": 52,
    "formula": "8d8 + 16"
  },
  "cha": 15,
  "con": 14,
  "dex": 11,
  "int": 11,
  "str": 14,
  "wis": 11,
  "name": "Fathomer",
  "page": 207,
  "size": [
    "M"
  ],
  "type": {
    "tags": [
      "human"
    ],
    "type": "humanoid"
  },
  "skill": {
    "arcana": "+2",
    "stealth": "+4",
    "perception": "+4"
  },
  "speed": {
    "walk": 30
  },
  "trait": [
    {
      "name": "Shapechanger (2/Day)",
      "entries": [
        "The fathomer can use its action to polymorph into a Medium serpent composed of water, or back into its true form. Anything the fathomer is wearing or carrying is subsumed into the serpent form during the change, inaccessible until the fathomer returns to its true form. The fathomer reverts to its true form after 4 hours, unless it can expend another use of this trait. If the fathomer is knocked {@condition unconscious} or dies, it also reverts to its true form.",
        "While in serpent form, the fathomer gains a swimming speed of 40 feet, the ability to breathe underwater, immunity to poison damage, as well as resistance to fire damage and bludgeoning, piercing, and slashing damage from nonmagical attacks. It also has immunity to the following conditions: {@condition exhaustion}, {@condition grappled}, {@condition paralyzed}, {@condition poisoned}, {@condition restrained}, {@condition prone}, {@condition unconscious}. The serpent form can enter a hostile creature's space and stop there. In addition, if water can pass through a space, the serpent can do so without squeezing."
      ]
    },
    {
      "name": "Olhydra's Armor (Human Form Only)",
      "entries": [
        "The fathomer can cast {@spell mage armor} at will, without expending material components."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Constrict (Serpent Form Only)",
      "entries": [
        "{@atk mw} {@hit 4} to hit, reach 5 ft., one target. {@h}9 ({@damage 2d6 + 2}) bludgeoning damage. If the target is Medium or smaller, it is {@condition grappled} (escape {@dc 12}). Until the grapple ends, the target is {@condition restrained}, and the fathomer can't constrict another target."
      ]
    },
    {
      "name": "Dagger (Human Form Only)",
      "entries": [
        "{@atk mw,rw} {@hit 4} to hit, reach 5 ft. or range 20/60 ft., one target. {@h}4 ({@damage 1d4 + 2}) piercing damage."
      ]
    }
  ],
  "source": "PotA",
  "passive": 14,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "MLW",
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    "RW",
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  "alignment": [
    "N",
    "E"
  ],
  "languages": [
    "Aquan",
    "Common"
  ],
  "traitTags": [
    "Shapechanger"
  ],
  "damageTags": [
    "B",
    "P"
  ],
  "languageTags": [
    "AQ",
    "C"
  ],
  "spellcasting": [
    {
      "name": "Spellcasting (Human Form Only)",
      "type": "spellcasting",
      "spells": {
        "0": {
          "spells": [
            "{@spell chill touch}",
            "{@spell eldritch blast}",
            "{@spell mage hand}"
          ]
        },
        "3": {
          "lower": 1,
          "slots": 2,
          "spells": [
            "{@spell armor of Agathys}",
            "{@spell expeditious retreat}",
            "{@spell hex}",
            "{@spell invisibility}",
            "{@spell Vampiric touch}"
          ]
        }
      },
      "ability": "cha",
      "headerEntries": [
        "The fathomer is a 5th-level spellcaster. Its spellcasting ability is Charisma (spell save {@dc 12}, {@hit 4} to hit with spell attacks). It has two 3rd-level spell slots, which it regains after finishing a short or long rest, and knows the following warlock spells:"
      ]
    }
  ],
  "attachedItems": [
    "dagger|phb"
  ],
  "hasFluffImages": true,
  "damageTagsSpell": [
    "C",
    "N",
    "O"
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  "conditionInflict": [
    "grappled",
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  ],
  "referenceSources": [
    "GoS"
  ],
  "spellcastingTags": [
    "CL",
    "F"
  ],
  "conditionInflictSpell": [
    "invisible"
  ]
}