Cheapest priced copy (The List): $8.49 at Card Kingdom, near mint, their price list as of .
Dawn Warriors' Legacy 
Mizzix's Mastery
Sorcery · Rare · Final Fantasy: Through the Ages · #41
Exile target card that's an instant or sorcery from your graveyard. For each card exiled this way, copy it, and you may cast the copy without paying its mana cost. Exile Mizzix's Mastery.
Overload {5}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
9 printings · $8.49 to $19.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 29 | Rare | $9.99 | — |
| Final Fantasy: Through the Ages (Dawn Warriors' Legacy) | 41 | Rare | $8.99 | $19.99 |
| Outlaws of Thunder Junction Commander | 175 | Rare | $8.99 | — |
| The List | C15-29 | Rare | $8.49 | — |
| Ravnica Remastered | 118 | Rare | $8.99 | $9.99 |
| Ravnica Remastered | 339 | Rare | $9.49 | $9.99 |
| Ravnica Remastered | 339z | Rare | — | — |
| Strixhaven Mystical Archive | 43 | Mythic | $10.99 | $17.99 |
| Strixhaven Mystical Archive | 106 | Mythic | $12.99 | $19.99 |
11 rulings from Wizards of the Coast
- 4 November 2015The copies are created and cast during the resolution of Mizzix's Mastery. You can't wait to cast them later in the turn. Timing restrictions based on the copy's type are ignored. Other restrictions (such as "Cast [this spell] only during combat") are not.
- 4 November 2015If you don't cast one of the copies (perhaps because there are no legal targets available or you don't want to), the copy will cease to exist.
- 4 November 2015Mizzix's Mastery is still on the stack as it resolves. If you pay the overload cost, Mizzix's Mastery won't copy itself.
- 4 November 2015If Mizzix's Mastery exiled multiple cards, you may cast the copies in any order. The last copy you cast will be the first one to resolve.
- 4 November 2015The cards remain exiled no matter what happens to the copies.
- 4 November 2015If you cast a spell "without paying its mana cost," you can't pay any alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, you must pay those.
- 4 November 2015If the copy has {X} in its mana cost, you must choose 0 as the value of X.
- 12 January 2024If you don't pay the overload cost of a spell with overload, that spell will have a single target. If you pay the overload cost, the spell won't have any targets.
- 12 January 2024Because a spell with overload doesn't target when its overload cost is paid, it may affect permanents with hexproof or with protection from the appropriate color.
- 12 January 2024To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as an overload cost), add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
- 12 January 2024If you are instructed to cast a spell with overload "without paying its mana cost," you can't choose to pay its overload cost instead.