Formed of a long, thin twig taken from an oak tree, this wand holds 1d4-1 charges of True Polymorph, with a minimum of 1. The amount of charges resets at dawn each day. Each time a charge is used the user must pass a DC 17 Arcana check. If they succeed, the spell casts normally and the DC needed to use it permanently increases by 1. If they fail by five or less, the spell will transmute the target into a hideous lump of seemingly random limbs, organs and facial features that is unable to act and dies once 1d4 rounds have passed, not returning to its original form. This transmutation cannot be undone by any spell lower than 9th level and cannot be canceled by ending concentration. The target can make a saving throw against this effect in the same way they would against a regular casting of True Polymorph. If they fail by more than five, in addition to the above consequences the wand explodes violently, dealing 1d12 force damage to all creatures within 10ft for each charge remaining in the wand. This destroys the wand.