Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Magmatic Insight 
Sorcery · Uncommon · Magic Origins · #155
As an additional cost to cast this spell, discard a land card.
Draw two cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic Origins | 155 | Uncommon | $0.49 | $3.99 |
| Outlaws of Thunder Junction Commander | 173 | Uncommon | $0.39 | — |
| The List | ORI-155 | Uncommon | $0.35 | — |
One ruling from Wizards of the Coast
- 22 June 2015You must discard exactly one land card to cast Magmatic Insight. You can't cast it without discarding a land card, and you can't discard additional cards.