The way to improve Sleight of Hand in Baldur's Gate 3 is to strengthen it by increasing agility. After being improved, you will have a certain advantage in combat. It is generally used by rogues and poets. Generally speaking, The effect is still very bad.
Answer: It is strengthened and improved by increasing agility.
17 ag + scalp 1 ag + level 4 2 agility = 20 agility. If strengthened in this way, it can increase 5 dexterity, which can be used by rogues and poets.
If the skillful hand has a ring, the damage will be higher. If there is a ring on the equipment, it can directly +2 rings.
Rings are obtained on the road to promotion. The method of obtaining them is relatively flexible. You can equip them after you obtain them.
Skillful hands have a certain advantage in throwing, and they will have a certain advantage in combat.