Gibberling

Small Fiend (Demon), Chaotic Evil

STR
13 (+1)
DEX
14 (+2)
CON
11 (+0)
INT
5 (-3)
WIS
7 (-2)
CHA
5 (-3)
Aversion to Fire.

If the gibberling takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn.

Incessant Gibberish.

Any non-gibberling that is within 30 feet of the gibberling and doesn't have the deafened condition has disadvantage on Constitution saving throws to maintain concentration on spells and similar effects.

Actions

Bite.

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) piercing damage.

Find this creature in the encounter builder

Gibberling

Source: Quests from the Infinite Staircase, p. 202 - Licenses and attribution