Cheapest priced copy (Innistrad: Double Feature): $0.35 at Card Kingdom, near mint, their price list as of .
Siege Zombie 
Creature — Zombie · 2/2 · Common · The List · #DBL-121
Tap three untapped creatures you control: Each opponent loses 1 life.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 121 | Common | $0.35 | $0.99 |
| Innistrad Remastered | 131 | Common | $0.35 | $0.49 |
| Innistrad: Midnight Hunt | 121 | Common | $0.35 | $0.49 |
| The List | DBL-121 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 24 September 2021Since Siege Zombie's activated ability doesn't have a tap symbol in its cost, you can tap creatures that haven't been under your control since your most recent turn began (including Siege Zombie itself) to pay the cost.