Squirming, ebony tentacles fill a 20-foot square on ground that you can see within range. For the duration, these tentacles turn the ground in the area into difficult terrain. When a creature enters the affected area for the first time on a turn or starts its turn there, the creature must succeed on a Dexterity saving throw or take 3d6 bludgeoning damage and be restrained by the tentacles until the spell ends. A creature that starts its turn in the area and is already restrained by the tentacles takes 3d6 bludgeoning damage. A creature restrained by the tentacles can use its action to make a Strength or Dexterity check (its choice) against your spell save DC. On a success, it frees itself.
SRD 5.1, p.121 · CC BY 4.0
Try this spell in RollQuest
Cast Black Tentacles on a real battle map. Pick a caster and a target and RollQuest plays the effect for everyone at the table. Free to start.
Run Black Tentacles through our free DnD 5e character sheet
Give Black Tentacles to your character and cast it straight from the sheet. RollQuest rolls the dice with your spellcasting modifier, posts the total in chat for the table and keeps count of your spell slots. See how our DnD 5e character sheet works, for 5e and 5.5e.