Arabella's Shadow Entangle is a level 1 conjuration spell. It allows a character to entangle Undead and shadow creatures.
Description
Cast this upon shadow and undead creatures to 
them.
The entangling surface can affect any creatures who move through it.
Properties
- Cost
Action- Details
Range: 18 m / 60 ft
Concentration
At higher levels
Casting this spell at a higher level grants no additional benefit.
Condition: Entangled
Duration: Until Long rest
- Cannot move.
Attack rolls against the creature have 
Advantage, while the creature's Attack Rolls and Dexterity 
Saving throws have 
Disadvantage.
How to learn
Other ways to learn:
- Save Arabella and the tiefling refugees, then after meeting her in the Shadow-Cursed Lands, tell her about her parents' fate during the quest Save Arabella.