Your ritual to change your accessed spells is more powerful and can be used more often.
Prerequisites
Spellcasting with limited Spell Access.
Benefit
When you conduct a ritual to change your accessed spells, you may exchange one additional spell.
In addition, you may conduct your ritual twice as often, to a maximum of once per day.
For most classes with limited spell access, this means that the ritual can be conducted twice per week and two spells can be exchanged each time.