Vorinclex, Voice of Hunger

Oracle Text

Trample

Whenever you tap a land for mana, add one mana to your mana pool 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.

Card Rulings

11/17/2017 The types of mana are white, blue, black, red, green, and colorless.
11/17/2017 If a land you control produces multiple mana of more than one type, Vorinclex’s first triggered ability adds one mana of only one of those types. You choose which of those types it adds.
11/17/2017 If Vorinclex leaves the battlefield after its second ability has triggered, that ability still resolves and the affected land won’t untap during its controller’s next untap step.