Arcanus Magium

{e}Add item bonus to Spell attack bonus and
Spell save DC of the wearer.
{e}Double the Distance and Duration of spells
Cast by the wearer.
{e}Ignore the Magic Resistance of targets of
Spells cast by the wearer.
{e}The wearer has advantage on Saves VS spells.
{t}Guard Globe: Reaction: 2/Long rest: One
Creature within 20ft of the wearer negates
one incoming spell.