More playing around with converting old monsters from 1st edition... this time, the Grell.

Another experiment in converting a monster as close to the original stats to the new 5e rules. Hell, this may already be officially statted out in the Monster Manual, but I’m going to try the exercise anyway.

I always had a soft spot for the Grell in the Fiend Folio, whose main shtick was that it was a giant flying brain-squid.

Grell, medium aberration, neutral evil
Armor class: 16 (natural, dex modifier)
Hit points 27 (5d8+5)
Speed: flight 30 feet
STR 15 (+2), DEX 14 (+2), CON 13 (+1), INT 10 (0), WIS 13 (+1), Cha 5 (-3)
Skills: Perception +4, Stealth +5
Damage Immunities: Electricity
Senses: Darkvision 60ft; Passive Perception 13
Languages: Common

Actions
Multiattack: a grell can make 10 attacks with its tentacles.
Tentacles: Reach 10 feet, natural attack +5 hit, d4+2 damage plus save vs. CON (DC 11) or paralyzed for 1 minute. May roll each round to overcome the paralysis.
Drag and bite: Reach 10 feet. As a bonus action, the grell can grab a paralyzed target in two tentacles and drag it to the grell’s mouth. The bite is a +5 natural attack with advantage, d8+5 damage.