Reading How does a Spiritual Weapon interact with illusions of creatures when it is moved? made me wonder - can a spiritual weapon be moved through walls?
The description of the spell reads (emphasis mine):
You create a floating, spectral weapon within range that lasts for the duration or until you cast this spell again. When you cast the spell, you can make a melee spell attack against a creature within 5 feet of the weapon. On a hit, the target takes force damage equal to 1d8 + your spellcasting ability modifier.
As a bonus action on your turn, you can move the weapon up to 20 feet and repeat the attack against a creature within 5 feet of it.
Spells typically require line-of-effect when cast, which would prevent you from conjuring the weapon on the other side of a wall. Does that have any bearing on moving the weapon through the wall? Additionally...
- Do you need to be able to see through the wall (for example, with a warlock's Ghostly Gaze invocation) to move the weapon through it?
- Would you also be able to move the weapon through if you can only see the other side of the wall (for example, seeing through a familiar's eyes)?
- Assuming that you are permitted by the rules to move a spiritual weapon through walls, can the weapon physically pass through? Can it remain in the wall?