Vorinclex, Voice of Hunger

Воринклекс, Голос Голода (Vorinclex, Voice of Hunger) (ru)

Legendary Creature - Phyrexian Praetor | Power/Toughness: 7 / 6 (CMC 8)
Whenever you tap a land for mana, add one mana of any type that land produced.
Whenever an opponent taps a land for mana, that land doesn't untap during its controller's next untap step.