Cheapest priced copy (Lorwyn): $1.79 at Card Kingdom, near mint, their price list as of .
Wren's Run Packmaster 
Creature — Elf Warrior · 5/5 · Rare · Lorwyn · #244
Champion an Elf (When this creature enters, sacrifice it unless you exile another Elf you control. When this creature leaves the battlefield, that card returns to the battlefield.)
{2}{G}: Create a 2/2 green Wolf creature token.
Wolves you control have deathtouch.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
4 printings · $1.79 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2014 | 227 | Rare | $1.99 | — |
| Commander Anthology | 171 | Rare | $2.29 | — |
| Lorwyn | 244 | Rare | $1.79 | $4.99 |
| Lorwyn Promos | 244★ | Rare | — | $2.49Out of stock |
2 rulings from Wizards of the Coast
- 1 October 2007Wren's Run Packmaster gives deathtouch to all Wolf permanents you control, not just the tokens it creates.
- 1 October 2009A Wolf's deathtouch ability will apply if both Wren's Run Packmaster and that Wolf are on the battlefield at the time the Wolf deals damage. The creature dealt damage by the Wolf will be destroyed the next time state-based actions are checked, even if the Wolf or Wren's Run Packmaster leaves the battlefield.