{
  "children": [],
  "desc": "Regardless of how many spells a caster knows or prepares, he or she can cast only a limited number of spells before resting. Manipulating the fabric of magic and channeling its energy into even a simple spell is physically and mentally taxing, and higher-level spells are even more so. Thus, each spellcasting class's description (except that of the warlock) includes a table showing how many spell slots of each spell level a character can use at each character level. For example, the 3rd-level wizard Umara has four 1st-level spell slots and two 2nd-level slots.\n\nWhen a character casts a spell, he or she expends a slot of that spell's level or higher, effectively \"filling\" a slot with the spell. You can think of a spell slot as a groove of a certain size-small for a 1st-level slot, larger for a spell of higher level. A 1st-level spell fits into a slot of any size, but a 9th-level spell fits only in a 9th-level slot. So when Umara casts *magic missile,* a 1st-level spell, she spends one of her four 1st-level slots and has three remaining.\n\nFinishing a long rest restores any expended spell slots.\n\nSome characters and monsters have special abilities that let them cast spells without using spell slots. For example, a monk who follows the Way of the Four Elements, a warlock who chooses certain eldritch invocations, and a pit fiend from the Nine Hells can all cast spells in such a way.\n\n#### Casting a Spell at a Higher Level\n\nWhen a spellcaster casts a spell using a slot that is of a higher level than the spell, the spell assumes the higher level for that casting. For instance, if Umara casts *magic missile* using one of her 2nd-level slots, that *magic missile* is 2nd level. Effectively, the spell expands to fill the slot it is put into.\n\nSome spells, such as *magic missile* and *cure wounds*, have more powerful effects when cast at a higher level, as detailed in a spell's description.\n\n#### Casting in Armor\n\nBecause of the mental focus and precise gestures required for spellcasting, you must be proficient with the armor you are wearing to cast a spell. You are otherwise too distracted and physically hampered by your armor for spellcasting.",
  "index": "spell-slots",
  "name": "Spell Slots",
  "parent": {
    "index": "what-is-a-spell",
    "name": "What Is a Spell?",
    "url": "/api/2014/rules/what-is-a-spell"
  },
  "updated_at": "2026-09-24T21:12:35.682Z",
  "url": "/api/2014/rules/spell-slots"
}