Troll (Loathsome Limb; Severed Head)

Source: Monster Manual p. 291. Available in the SRD and the Basic Rules (2014)

"name": "Troll (Loathsome Limb; Severed Head)"
"size": "Tiny"
"type": "giant"
"alignment": "Chaotic Evil"
"ac": !!int "13"
"ac_class": "natural armor"
"hp": !!int "10"
"modifier": !!int "1"
"stats":
  - !!int "18"
  - !!int "13"
  - !!int "20"
  - !!int "7"
  - !!int "9"
  - !!int "7"
"speed": "0 ft."
"skillsaves":
  - "name": "Perception"
    "desc": "+2"
"senses": "darkvision 60 ft., passive Perception 12"
"languages": "Giant"
"cr": "5"
"traits":
  - "desc": "The troll has advantage on Wisdom (Perception) checks that rely on smell."
    "name": "Keen Smell"
  - "desc": "The troll regains 10 hit points at the start of its turn. If the troll\
      \ takes acid or fire damage, this trait doesn't function at the start of the\
      \ troll's next turn. The troll dies only if it starts its turn with 0 hit points\
      \ and doesn't regenerate."
    "name": "Regeneration"
"actions":
  - "desc": "*Melee Weapon Attack:* +7 to hit, reach 5 ft., one target. *Hit:* 7 (1d6\
      \ + 4) piercing damage."
    "name": "Bite"
"source":
  - "MM"

Environment

underdark, mountain, forest, swamp, hill, arctic