Enhanced Arcane Focus

Source: Tasha’s Cauldron of Everything p. 21, Eberron: Rising from the Last War p. 62

Prerequisite: A rod, staff, or wand (requires attunement)

While holding this item, a creature gains a +1 bonus to spell attack rolls. In addition, the creature ignores half cover when making a spell attack.

The bonus increases to +2 when you reach 10th level in this class.