Elder Deep-Fiend - Commander Deck (CMR) from Commander Legends, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Jason Felix
• Card Text:
  Flash
  Emerge 5UU (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's converted mana cost.)
  When you cast this spell, tap up to four target permanents.