Play during your turn.
Action: Put target non-Hero unit in your opponent's discard pile into play under your control (you choose which zone the unit enters).

This one will be most useful.

• Card Number: 30
• Rarity: F
• Card Type: Tactic
• Race: Dark Elf
• Cost: 4
• Hit Points: 0
• Loyalty Icons: 3
• Power Icons: 0
• Unique: No