Power Conduit

5th-level evocation
Casting time: 1 action
Range: 60 feet
Target: 10-foot radius sphere within range
Components: V S M
Duration: Concentration, up to 10 minutes
Classes: Artificer, Cleric, Paladin
Subclasses: --

You focus all your arcane power and essence into a 10-foot radius sphere centered on a point you can see within range. All ranged spell attacks cast from within this area have advantage on the attack roll.