Spell Mastery is a Wizard feature gained at level 18 in D&D 5e. At 18th level, you have achieved such mastery over certain spells that you can cast them at will.
At 18th level, you have achieved such mastery over certain spells that you can cast them at will. Choose a 1st-level wizard spell and a 2nd-level wizard spell that are in your spellbook. You can cast those spells at their lowest level without expending a spell slot when you have them prepared. If you want to cast either spell at a higher level, you must expend a spell slot as normal.
By spending 8 hours in study, you can exchange one or both of the spells you chose for different spells of the same levels.
Frequently Asked Questions
At 18th level, you have achieved such mastery over certain spells that you can cast them at will.
You gain Spell Mastery at level 18 Wizard progression.
Yes. Spell Mastery is a Wizard class feature in D&D 5e.