Cheapest priced copy (Fourth Edition): $1.79 at Card Kingdom, near mint, their price list as of .
Drain Power 
Sorcery · Rare · Unlimited Edition · #57
Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
13 printings · $1.79 to $549.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Unlimited Edition | 57 | Rare | $23.99 | — |
| 30th Anniversary Edition | 56 | Rare | $22.99 | — |
| 30th Anniversary Edition | 353 | Rare | $99.99 | — |
| Revised Edition | 56 | Rare | $2.29 | — |
| Fourth Edition Foreign Black Border | 67 | Rare | — | — |
| Fourth Edition | 67 | Rare | $1.79 | — |
| Fifth Edition | 82 | Rare | $2.79 | — |
| Collectors' Edition | 57 | Rare | $2.99 | — |
| Intl. Collectors' Edition | 57 | Rare | $5.49 | — |
| Foreign Black Border | 56 | Rare | — | — |
| Limited Edition Alpha | 56 | Rare | $549.99 | — |
| Limited Edition Beta | 57 | Rare | $249.99Out of stock | — |
| Summer Magic / Edgar | 56 | Rare | — | — |
4 rulings from Wizards of the Coast
- 4 October 2004Your opponent may use instants and abilities of permanents in response to this spell before you get the mana.
- 4 October 2004This card forces the target player to draw mana from lands if they are untapped, but that player can choose how to draw the mana if a land they control has multiple mana abilities, or mana abilities with choices.
- 4 October 2004If a land can draw a variable amount of mana, the target player (not the player of this spell) chooses how much to draw.
- 15 April 2013A mana ability is an ability that (1) isn't a loyalty ability, (2) doesn't target, and (3) could add mana when it resolves.