Lizard’s Lament

As long as this item is in your possession and you are attuned to it; it has the following properties.

After a Long Rest any remaining charges in this wand are lost. To gain charges you need to donate your own blood to the wand, at least equal to 1 HP per level. The wand then gains 1d6 charges. While holding the wand you can do the following:

You are immune to any Polymorph effects as long as the wand has charges.

You can use a Bonus Action to spend 1 charge and give any creature you touch Advantage on Stealth rolls until the end of your next turn.

You can cast one of the following spells using the number of charges indicated:

Invisibility (2 charges), Spider Climb (2 charges), Witch Bolt (1 charge, takes the form of a lizard’s tongue and does Acid damage). In all cases you need to Concentrate on the spell as if you had cast it.