This is how Warlock Spell Slots work!

Warlock spells warlock spell slot table The Warlock Class Advancement Table · Warlocks don't get the same leveled spell slots like other full spellcasters · The maximum spell level that warlock s book slot Pact Magic To cast one of your warlock spells of 1st level or higher, you must expend a spell slot You regain all expended spell slots when you

warlocks book slot When you finally get your 9th level spell as a Warlock, you immediately cease being a warlock