Spider Climb

You do not suffer any penalties from moving across webs, either natural or created through magic or items. You may climb up walls without using any tools or making any checks at half your normal movement speed and can remain attached to the wall.

If you take any action other than moving or climbing, you become vulnerable to be knocked off the wall you're climbing until the start of your next turn. When you take damage, you slide down 20ft. If you are hanging on a ceiling or similar surface, you instead fall down from it falling prone and taking fall damage as normal.