Fires of Entanglement (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Duration:||Concentration, up to 1 minute|
When you cast this spell, vines of fire jump out of the ground and wrap themselves around anything in a 20-foot square around the starting point. For the duration they turn the area into difficult terrain and do 1d6 fire damage to everything in the range that starts their turn in the range.
A creature in the area when you cast the spell must succeed on a Strength saving throw or be restrained by the entangling plants until the spell ends. A creature restrained by the plants can use its action to make a Strength check against your spell save DC. On a success, it frees itself.
When the spell ends, the fires die down.