Aberrant Ground. The ground in a 10-foot radius around the mouther is doughlike difficult terrain. Each creature that starts its turn in that area must succeed on a DC 10 Strength saving throw or have its speed reduced to 0 until the start of its next turn.
Gibbering. The mouther babbles incoherently while it can see any creature and isn’t incapacitated. Each creature that starts its turn within 20 feet of the mouther and can hear the gibbering must succeed on a DC 10 Wisdom saving throw. On a failure, the creature can’t take reactions until the start of its next turn and rolls a d8 to determine what it does during its turn. On a 1 to 4, the creature does nothing. On a 5 or 6, the creature takes no action or bonus action and uses all its movement to move in a randomly determined direction. On a 7 or 8, the creature makes a melee attack against a randomly determined creature within its reach or does nothing if it can’t make such an attack.
Multiattack. The gibbering mouther makes one bite attack and, if it can, uses its Blinding Spittle.
Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one creature. Hit: 17 (5d6) piercing damage. If the target is Medium or smaller, it must succeed on a DC 10 Strength saving throw or be knocked prone. If the target is killed by this damage, it is absorbed into the mouther.
Blinding Spittle (Recharge 5–6). The mouther spits a chemical glob at a point it can see within 15 feet of it. The glob explodes in a blinding flash of light on impact. Each creature within 5 feet of the flash must succeed on a DC 13 Dexterity saving throw or be blinded until the end of the mouther’s next turn.
RAW, he is unconscious and not absorbed. The rule is "If a target is killed by this damage [from a bite attack], it is absorbed into the mouther." This happens when the gibbering mouther causes him to lose his last death save with a bite attack, or does enough damage with a single bite attack to drop him from full HP to 0 HP. Keep in mind that attacks against an unconscious character automatically causes a failed death save, but the gibbering mouther still needs to make those attacks.
Underrated monster. Seems like it would make for a fun, nasty early level boss (maybe add a few extra hit points), especially if your party is particularly martial focused.
funni mouth man :)
Made this thing a pet in the game im playing in and now i call it rick. He loves apples.
Ok so this thing seems like it is literally out of my nightmares... because it is, I have had nightmares about this exact kind of thing.
I'll take it
Additionally, set this in a fairly tight dungeon, around a blind corner so the party basically runs into it. The mouther will hear them coming and get a surprise round to really put the party in a bad spot to start combat.
No surprise round if the party hears the creature. And with a -1 to Stealth....
Bruh, 8 and 9 are minus 1, 10 and 11 aren’t.
I assume you make Death Saves. As a DM I would make the Mouther attack the downed Paladin until he is proper dead. an easy meal.
it was so fun it forced my mainly brute force players to use the mother's weakness range I put cross bows in a corner and let them figure it out
Why is this monstrosity (not creature type, I'm just describing it) in the Basic Rules.
Same as astral
Nearly died fighting one
My group and I despise these. They have been thrown at us way too often.
My absolute favourite monster. My players were horrified.
yes. just yes.
My players are going to play A Wild Sheep Chase tomorrow. let's see if this comes up.
If your party is below level three(perhaps even four), I doubt they could slay this creature in a melee without any deaths. I hope someone heightens the challenge rating.