Creature — Elf Warrior 5/5, 3G (4)
Rare
Champion an Elf (When this enters the battlefield, sacrifice it unless you exile another Elf you control. When this leaves the battlefield, that card returns to the battlefield.)
{2}{G}: Put a 2/2 green Wolf creature token onto the battlefield.
Each Wolf you control has deathtouch. (Any amount of damage it deals to a creature is enough to destroy that creature.)
Illus. Mark Zug

10/1/2007: Wren's Run Packmaster gives deathtouch to all Wolf permanents you control, not just the tokens it creates.
10/1/2009: A 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.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern