BFZBattle for Zendikar

Void Winnower

Void Winnower from Battle for Zendikar
Void Winnower from Battle for Zendikar

Creature — Eldrazi   {9} (CMC:9)

Your opponents can't cast spells with even converted mana costs. (Zero is even.) Your opponents can't block with creatures with even converted mana costs.

"Have you ever seen a world fall to its knees? Watch, and learn."—Ob Nixilis 25—26 September 2015

017 Prerelease BFZ ★ ENChase Stone

Legal in: Modern,Battle for Zendikar Block,Legacy,Vintage,Commander

Oracle Text (click to copy):
8/25/2015
Effects that increase or reduce the cost to cast a spell don’t affect that spell’s converted mana cost.
8/25/2015
For spells with {X} in their mana costs, use the value chosen for X to determine if the spell’s converted mana cost is even or not. For example, your opponent could cast Endless One (with mana cost {X}) with X equal to 5, but not with X equal to 6.
8/25/2015
For creatures on the battlefield with {X} in their mana costs, the value for X is 0. Mistcutter Hydra (a creature with mana cost {X}{G}) could block, but Endless One could not.
8/25/2015
The converted mana cost of a face-down creature spell or a face-down creature is 0. Void Winnower will stop face-down creature spells from being cast and face-down creatures from blocking.
8/25/2015
Yes, your opponent can’t even. We know.

Card Void Winnower is not on TCGPlayer.