Cheapest priced copy (Fourth Edition): $0.49 at Card Kingdom, near mint, their price list as of .
Mishra's War Machine 
Artifact Creature — Juggernaut · 5/5 · Rare · Foreign Black Border · #266
Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)
At the beginning of your upkeep, this creature deals 3 damage to you unless you discard a card. If it deals damage to you this way, tap it.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
6 printings · $0.49 to $7.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Revised Edition | 266 | Rare | $0.59 | — |
| Fourth Edition Foreign Black Border | 337 | Rare | — | — |
| Fourth Edition | 337 | Rare | $0.49 | — |
| Antiquities | 57 | Rare | $7.49 | — |
| Foreign Black Border | 266 | Rare | — | — |
| Summer Magic / Edgar | 266 | Rare | — | — |
5 rulings from Wizards of the Coast
- 4 October 2004You may choose to take damage or to discard. You can't avoid taking damage if you have no cards to discard.
- 1 October 2008Creatures in the same band must all attack the same player or planeswalker.
- 1 October 2008If a creature with banding attacks, it can team up with any number of other attacking creatures with banding (and up to one nonbanding creature) and attack as a unit called a "band." The band can be blocked by any creature that could block a single creature in the band. Blocking any creature in a band blocks the entire band. If a creature with banding is blocked, the attacking player chooses how the blockers' damage is assigned.
- 1 October 2008A maximum of one nonbanding creature can join an attacking band no matter how many creatures with banding are in it.
- 1 October 2009If a creature in combat has banding, its controller assigns damage for creatures blocking or blocked by it.