Cheapest priced copy (Outlaws of Thunder Junction Commander): $5.49 at Card Kingdom, near mint, their price list as of .
Niv-Mizzet, Parun 
Legendary Creature — Dragon Wizard · 5/5 · Rare · Commander Legends: Battle for Baldur's Gate · #851
This spell can't be countered.
Flying
Whenever you draw a card, Niv-Mizzet deals 1 damage to any target.
Whenever a player casts an instant or sorcery spell, you draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
11 printings · $5.49 to $44.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 851 | Rare | $5.99 | — |
| Guilds of Ravnica | 192 | Rare | $6.49 | $8.99 |
| Outlaws of Thunder Junction Commander | 235 | Rare | $5.49 | — |
| Guilds of Ravnica Promos | 192p | Rare | $6.49 | $12.99 |
| Guilds of Ravnica Promos | 192s | Rare | — | $10.99Out of stock |
| The List | GRN-192 | Rare | — | $7.99 |
| Ravnica Remastered | 207 | Rare | $6.49 | $8.99 |
| Ravnica Remastered | 376 | Rare | $6.49 | $9.99 |
| Ravnica Remastered | 376z | Rare | — | — |
| Ravnica Remastered | 438 | Rare | $16.99 | $44.99 |
| Secret Lair Drop | 1530 | Rare | — | $22.99Out of stock |
4 rulings from Wizards of the Coast
- 5 October 2018Players can cast spells and activate abilities after Niv-Mizzet's second triggered ability resolves but before the spell that caused it to trigger does. Notably, the card you draw may be able to counter that spell.
- 5 October 2018If a spell or ability causes you to put cards into your hand without specifically using the word "draw," Niv-Mizzet's first triggered ability won't trigger.
- 5 October 2018If an effect instructs you to draw multiple cards, Niv-Mizzet's first triggered ability triggers that many times. You choose targets for those abilities after you've drawn all of the cards.
- 5 October 2018Niv-Mizzet's second triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered. This causes its first triggered ability to trigger, and that also resolves before the spell.