Void Winnower 
Creature — Eldrazi
Your opponents can't cast spells with even mana values. (Zero is even.)
Your opponents can't block with creatures with even mana values.
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Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Inventive Iteration // Living Breakthrough 89%
$0.30#9276
"Whenever you cast a spell, your opponents can't cast spells with the same mana value as that spell until your next turn."
Drannith Magistrate 89%
$14.78#698
"Your opponents can't cast spells from anywhere other than their hands."
Teferi, Time Raveler 89%
$7.25#1139
"Each opponent can cast spells only any time they could cast a sorcery."
Teferi, Mage of Zhalfir 89%
$3.05#4358
"Each opponent can cast spells only any time they could cast a sorcery."
Jennifer Walters // The Sensational She-Hulk 87%
$14.40#12167
"Your opponents can't cast spells during your turn."
Megatron, Tyrant // Megatron, Destructive Force 86%
$2.08#11410
"Your opponents can't cast spells during combat."