Phantasmal Staff of Power

Staff, Very rare, Requires attunement by a spellcaster

(This item is based on the staff of power from the DMG, with some modifications.)

This staff can be wielded as a magic quarterstaff that grants a +2 bonus to attack and damage rolls made with it. While holding it, you gain a +2 bonus to Armor Class, saving throws, and spell attack rolls.

The staff has 20 charges for the following properties. The staff regains 2d8 + 4 expended charges daily at dawn.

Power strike. When you hit with a melee attack using the staff, you can expend 1 charge to deal an extra 1d6 force damage to the target.

Spells. While holding this staff, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC and spell attack bonus:

Cost	Spell
5	Cone of cold
6	Circle of death
6	Globe of invulnerability
5	Hold monster
3	Speak with dead
5	Lightning bolt (5th level, 10d6)
1	Magic missile
5	Blight (5th level, 9d8)
5	Vampiric touch (5th level, 5d6)

Retributive strike. You can use an action to break the staff over your knee or against a solid surface, performing a retributive strike. The staff is destroyed and releases its remaining magic in an explosion that expands to fill a 30-foot-radius sphere centered on it. You have a 50% chance to instantly travel to a random plane of existence, avoiding the explosion. If you fail to avoid the effect, you take force damage equal to 16 x the number of charges currently in the staff. Every other creature in the area must make a DC 17 Dexterity saving throw. On a failed save, a creature takes an amount of damage based on how far away it is from the point of origin, as shown in the following table. On a successful save, the creature takes half as much damage.

Distance from origin	Damage
10 ft. away or closer	8 x number of charges
11 to 20ft away	6 x number of charges
21 to 30ft away	4 x number of charges

Phantasmal affinity. You have advantages on saving throws against the abilities of spectral undead, such as a banshee's wail. Your spells may target spectral undead as if they were humanoids.