Cheapest priced copy (Modern Horizons 3 Commander): $4.49 at Card Kingdom, near mint, their price list as of .
Siege-Gang Lieutenant 
Creature — Goblin · 2/2 · Rare · The List · #M3C-113
Lieutenant — At the beginning of combat on your turn, if you control your commander, create two 1/1 red Goblin creature tokens. Those tokens gain haste until end of turn.
{2}, Sacrifice a Goblin: This creature deals 1 damage to any target.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $4.49 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 Commander | 61 | Rare | $4.99 | $8.99Out of stock |
| Modern Horizons 3 Commander | 113 | Rare | $4.49 | — |
| The List | M3C-113 | Rare | $4.49 | — |
2 rulings from Wizards of the Coast
- 7 June 2024If you don't control your commander as the lieutenant ability resolves, you won't get its effect.
- 7 June 2024If you have multiple commanders, the lieutenant effect will happen as long as you control at least one commander. It will happen only once even if you control multiple commanders.