The main function of the Thorn Whip in Baldur's Gate 3 is to attack a creature with a vine whip covered with thorns. If it is a giant creature, it cannot be pulled. Players need to pay attention when using it.
Answer: The main function is to attack a creature with a vine whip covered with thorns, which will also shorten the distance.
This spell is also quite special in the game. It is quite good in terms of damage. Players can use the forced displacement spell.
The only disadvantage of the spell is that the attack range is very small, and players can choose to use it according to their own situation.
It is still recommended that players bring it during battle. It is not a concentration spell, so players will have some benefits after bringing it.
Another thing is that if you attack a giant target, you cannot pull it.