Patron's Gift Feature 19
Your patron grants you the power to command incredible works of magic. You gain a single 10th-level spell slot and can prepare a spell in that slot using witch spellcasting.
Unlike with other spell slots, these spell slots can't be used for abilities that let you cast spells without expending spell slots or abilities that give you more spell slots. You don't gain more 10th-level spells as you level up, though you can take the Patron's Truth feat to gain a second slot.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
WitchThis indicates abilities from the witch class.