Ghalta, Primal Hunger (GNT)

• Set: Game Night (GNT)
• Mana Cost: {10}{G}{G} (but rarely full price)
• Card Type: Legendary Creature — Elder Dinosaur
• Rarity: Rare
• Power/Toughness: 12/12
• Artist: Chase Stone
  

Card Text:

This spell costs {X} less to cast, where X is the total power of creatures you control.
Trample