b'Runeskull \n'b'  Tiny   undead ,  neutral evil  \n'b'  Armor Class  13  Hit Points  18 (4d4 + 8)  Speed  0 ft., fly 30 ft.\n'b' STATS STR: 1 (-5) DEX:  17 (+3)  CON:  14 (+2)  INT:  10 (+0)  WIS:  11 (+0)  CHA:  14 (+2)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'     Skills   Perception  +2  Damage Resistances  lightning, necrotic, piercing  Damage Immunities  poison  Condition Immunities   charmed ,  frightened ,  paralyzed ,  poisoned ,  prone   Senses  darkvision 60 ft., passive  Perception  12  Languages  Common  Challenge  1/2 (100 XP) \n'b' Special Traits \n'b'   Spellcasting . The runeskull is a 2nd-level spell caster. Its spellcasting ability is  Charisma  (spell save DC 12, +4 to hit with spell attacks). It requires no somatic or material components to cast its spells. The runeskull has the following  sorcerer  spells prepared: \n'b'   Cantrips  (at will):  chill touch ,  mage hand  \n'b'  1st level  (3 slots):  shield ,  thunderwave  \n'b'   Actions \n'b'   Steal Life . The runeskull targets one creature it can see within 30 feet of it. The target must succeed on a DC 12  Constitution  saving throw or take 2 (1d4) necrotic damage. The runeskull regains  hit points  equal to that amount.'