Devilish Valet - Promo Pack (Foil) (PSNC) from Streets of New Capenna, available at 401 Games Canada.

• Rarity: Rare
• Finish: Foil
• Artist: Bud Cook
• Card Text:
  Trample, haste
  Alliance — Whenever another creature enters the battlefield under your control, double Devilish Valet's power until end of turn.