Band of Gravitational Shaping

This unassuming metal armlet, consisting of three interlocked rings, is made of uniform metal. Upon close inspection, the center ring is not connected to the rest of the band, and appears to be constantly vibrating in its space at an incredible, if nearly imperceptible frequency. While attuned to this item, the wearer gains +1 to all spell attack rolls, and their spell-save DC increases by 1. This item has 5 charges which may be expended to activate any of the following effects:

Gravitic Ward - Consuming 1 charge, the wearer may spend a reaction to brace their arm against the band, castingShield without expending any spell slots.

Charged Repulsion - Consuming 3 charges, the wearer may spend an action to strike the armband and detonate a blast of gravity-altering force. An expanding forcefield explodes in a 20-foot radius around the caster, slamming into all creatures in range. The caster may create up to 3 'holes' in the field, allowing targets in a 5-foot wide line originating from the radius' center to be unaffected. All affected creatures suffer 4d6 Force damage and must make a DC18 Strength saving throw. Upon failure, they are pushed twenty feet directly away from the caster and their movement is reduced to 0 until the end of their next round. Upon a successful save, they take half damage, are not moved, and their movement is reduced by half.

Vector Alteration - Consuming 5 charges, the wearer may spend a bonus action to twist the armband's center ring fully clockwise, igniting arcane runes across the surface of the metal. This activates the band for the next minute, granting the wearer the ability to manipulate the magnitude of incoming or outgoing forces. On this turn, and on subsequent turns as a bonus action, the wearer may choose to add 1d10 Force damage to any spell that they cast, provided the spell deals damage. Multi-hit spells such as Eldritch Blast or Scorching Ray only receive this benefit once. Additionally, when receiving damage from any attack, spell, or magical effect, the wearer can spend a reaction to reduce the damage by 1d10.

Each dawn, this item regains 1d4-1 charges. If this item is reduced to 0 charges, roll a d20. On a roll of 1, the band becomes inert, and will require 7 days to recharge.

Notes: Damage: Force, Grappled, spellcaster