Cheapest priced copy (World Championship Decks 2000): $0.49 at Card Kingdom, near mint, their price list as of .
Mishra's Helix 
Artifact · Rare · World Championship Decks 2000 · #jf302
{X}, {T}: Tap X target lands.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
6 printings · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | USG-302 | Rare | $0.79 | — |
| Urza's Saga | 302 | Rare | $2.99 | — |
| World Championship Decks 2000 | jf302 | Rare | $0.49 | — |
| World Championship Decks 2000 | jf302sb | Rare | $0.49 | — |
| World Championship Decks 1999 | kb302 | Rare | $0.49 | — |
| World Championship Decks 1999 | kb302sb | Rare | $0.49 | — |
One ruling from Wizards of the Coast
- 4 October 2004You can target already tapped lands.