Cheapest priced copy (Revised Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Power Sink 
Instant · Common · 30th Anniversary Edition · #72
Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
26 printings · $0.35 to $59.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Unlimited Edition | 73 | Common | $1.49Out of stock | — |
| 30th Anniversary Edition | 72 | Common | $0.99 | — |
| 30th Anniversary Edition | 369 | Common | $18.99 | — |
| Revised Edition | 74 | Common | $0.35 | — |
| Fourth Edition Foreign Black Border | 93 | Common | — | — |
| Fourth Edition | 93 | Common | $0.35 | — |
| Fifth Edition | 111 | Uncommon | $0.35 | — |
| Classic Sixth Edition | 87 | Uncommon | $0.35 | — |
| Beatdown Box Set | 14 | Common | $1.79 | — |
| Collectors' Edition | 73 | Common | $3.99 | — |
| Intl. Collectors' Edition | 73 | Common | $2.99 | — |
| Foreign Black Border | 74 | Common | — | — |
| Ice Age | 91 | Common | $0.35 | — |
| Introductory Two-Player Set | 12 | Common | — | — |
| Limited Edition Alpha | 72 | Common | $59.99 | — |
| Limited Edition Beta | 73 | Common | $17.99 | — |
| Mirage | 83 | Common | $0.35 | — |
| The List | MIR-83 | Common | $0.35 | — |
| Pro Tour Collector Set | shr93 | Common | $0.39 | — |
| Rivals Quick Start Set | 11 | Common | — | — |
| The Zeta Set | 28 | Common | — | — |
| The Zeta Set | 149 | Common | — | — |
| The Zeta Set | 270 | Common | — | — |
| Summer Magic / Edgar | 74 | Common | — | — |
| Tempest | 78 | Common | $0.35 | — |
| Urza's Saga | 89 | Common | $0.35 | — |
3 rulings from Wizards of the Coast
- 4 October 2004Does not increase the mana cost of the spell. It just requires a separate expenditure in order for it to succeed.
- 4 October 2004When this spell resolves, you either pay X mana or let your lands become tapped. The lands that become tapped are not “tapped for mana”. If you choose to pay, you may pay the X mana using whatever mana abilities you want to use.
- 1 March 2010Only lands that actually have mana abilities will get tapped. This includes basic lands and lands with mana abilities printed on them, as well as lands which have been granted a mana ability by some effect.