Band of the Time Lord

This ring was enchanted by a mysterious wizard who travelled countless planes of existence and bent the fabric of time and space to suit his needs and enhance his magic abilities.
Anyone who knows the Primordial language can read on the inside of the ring " E.S." If also attuned to the ring, the words magically change to "Elias Stargrove".

Space and Time:

Mastery over space and time allows the user attuned to the ring to produce supernatural effects when casting spells.

Space takes effect by producing a translucent echo of the user next to him which enhances the spell cast by providing 2d10 of additional force damage when dealing damage with a spell or spell attack.

Time takes effect by allowing the user to speed up time with his magic and cast a spell as a bonus action or reaction (only if the enemy provokes an attack of opportunity and only a spell that targets one creature).

Spacetime is the acummulated effect of both masteries, allowing the user small glimpses into the future when in a dangerous situation. As a result the user gets a +2 bonus to spell attack rolls, spell save DC and armor class when in combat.

Notes: Wizard, Sorcerer or Bard