Cheapest priced copy (Saviors of Kamigawa): $0.79 at Card Kingdom, near mint, their price list as of .
Pure Intentions 
Instant — Arcane · Rare · Saviors of Kamigawa · #25
Whenever a spell or ability an opponent controls causes you to discard cards this turn, return those cards from your graveyard to your hand.
When a spell or ability an opponent controls causes you to discard this card, return this card from your graveyard to your hand at the beginning of the next end step.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.79 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Saviors of Kamigawa | 25 | Rare | $0.79 | $2.99 |
4 rulings from Wizards of the Coast
- 1 June 2005Discarding Pure Intentions to your own spell or ability doesn't trigger its abilities.
- 1 June 2005The first part of Pure Intentions is the effect of casting Pure Intentions. The second part is a triggered ability that triggers whenever an opponent's spell or ability causes a player to discard Pure Intentions.
- 1 June 2005Neither part cares who decides which card to discard — only the controller of the spell or ability matters.
- 1 June 2005If a spell or ability an opponent controls causes a player to discard multiple cards, such as Waking Nightmare or Three Tragedies, Pure Intentions doesn't return to hand until its triggered ability has resolved. A player can't discard the same Pure Intentions twice for the same discard effect.