Cheapest priced copy (Revised Edition): $0.69 at Card Kingdom, near mint, their price list as of .
Helm of Chatzuk 
Artifact · Rare · Fifth Edition · #376
{1}, {T}: Target creature gains banding until end of turn. (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 a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
13 printings · $0.69 to $599.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Unlimited Edition | 247 | Rare | $9.99 | — |
| 30th Anniversary Edition | 242 | Rare | $39.99 | — |
| 30th Anniversary Edition | 539 | Rare | $229.99 | — |
| Revised Edition | 250 | Rare | $0.69 | — |
| Fourth Edition Foreign Black Border | 324 | Rare | — | — |
| Fourth Edition | 324 | Rare | $0.99 | — |
| Fifth Edition | 376 | Rare | $0.79 | — |
| Collectors' Edition | 247 | Rare | $2.79Out of stock | — |
| Intl. Collectors' Edition | 247 | Rare | $4.49 | — |
| Foreign Black Border | 250 | Rare | — | — |
| Limited Edition Alpha | 246 | Rare | $599.99 | — |
| Limited Edition Beta | 247 | Rare | $129.99 | — |
| Summer Magic / Edgar | 250 | Rare | — | — |
4 rulings from Wizards of the Coast
- 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 2008Creatures in the same band must all attack the same player or planeswalker.
- 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.