Charge Beam

You concentrate on powering up your beam, costing 1 action. Charges can be stacked infinitely, but once you attack with any beam spell it fades. Each round of concentrating boosts the damage of your next beam by 2d4 force damage. Note: charging only affects your beam spells.

At Higher Levels: When you cast this spell with a 2nd-level slot, your damage is boosted by 3d4, at a 5th-level slot by 4d4, or at a 7th-level slot by 5d4.