Cheapest priced copy (Morningtide): $0.49 at Card Kingdom, near mint, their price list as of .
Research the Deep 
Sorcery · Uncommon · Morningtide · #46
Draw a card. Clash with an opponent. If you win, return Research the Deep to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.49 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Morningtide | 46 | Uncommon | $0.49 | $2.49 |
2 rulings from Wizards of the Coast
- 1 April 2008If you win the clash, the spell moves from the stack to your hand as part of its resolution. It never hits the graveyard. If you don't win the clash, the spell is put into the graveyard from the stack as normal.
- 1 April 2008If the spell is countered or doesn't resolve for any reason (for example, if all its targets become illegal), none of its effects happen. There is no clash, and the spell card won't be returned to your hand.