Cheapest priced copy (Duel Decks: Elves vs. Goblins): $0.99 at Card Kingdom, near mint, their price list as of .
Skirk Fire Marshal 
Creature — Goblin · 2/2 · Rare · Duel Decks: Elves vs. Goblins · #50
Protection from red
Tap five untapped Goblins you control: This creature deals 10 damage to each creature and each player.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.99 to $17.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Elves vs. Goblins | 50 | Rare | $0.99 | — |
| Duel Decks Anthology: Elves vs. Goblins | 50 | Rare | $1.49 | — |
| Onslaught | 229 | Rare | $1.29 | $17.99 |
| The List | ONS-229 | Rare | $1.49 | — |
One ruling from Wizards of the Coast
- 4 October 2004You may tap any untapped permanents you control with the appropriate creature type (including this creature) to pay the cost of the ability, including creatures that haven't been under your control continuously since the beginning of your most recent turn.