Baleful Mastery 
Instant
Oracle text (EN)
Instant
You may pay 
rather than pay this spell's mana cost.
If the cost was paid, an opponent draws a card.
Exile target creature or planeswalker.
Printing details
- Set
- STX · 64
- Rarity
- Rare
- Language
- EN
- Artist
- Chris Cold
- Released
- 2021-04-23
- Prices
- €2.27 · $1.52
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 31, 2026 | €2.29 | €0.66 |
| October 30, 2026 | €2.27 | €0.66 |
| October 29, 2026 | €2.32 | €0.66 |
| October 28, 2026 | €2.21 | €0.66 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €2.29 30-day avg €2.04 | low €0.80 trend €2.67 30-day avg €2.88 |
| CardTrader (EN) | NM from €0.66 with Zero from €2.24 | NM from €2.77 with Zero from €4.09 |
| CardTrader (any language) | NM from €0.66 | NM from €2.77 |
Cardmarket updated Oct 31, 2026 · CardTrader updated Oct 31, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Not legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Legal
- tlr Not legal
Rulings
-
If you copy a "Mastery" spell and the alternative cost was paid, the copy will resolve as though the cost was paid.
-
The mana value of a spell on the stack is determined by its mana cost, not any alternative costs you used to pay for it.
-
In a multiplayer game, you choose which opponent takes the prescribed action as the spell resolves.
-
If you choose to pay one alternative cost, you can't pay any other alternative costs. For example, if an effect lets you cast a "Mastery" spell "without paying its mana cost," you can't also choose to pay its given alternative cost.
-
If an effect increases or decreases the cost of spells you cast, that cost increase or decrease is applied to the alternative cost you chose to pay. In that case, the cost was still paid for the purposes of the effect, even if you paid more or less for it when it was cast.