Mathmech Diameter
Lowest price · All printings
$0.70
Any condition · All stores · Oct 17, 2026
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1 printing · 1 store
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Prices as of Oct 17, 2026 at 5 AM ET. Stock moves fast, so confirm on the store's page.
| Set code | Set | Rarity | Listings | Lowest today |
|---|---|---|---|---|
| ROTD-EN028 | Rise of the Duelist | Common | 1 | $0.70 |
When this card is Normal Summoned: You can target 1 Level 4 Cyberse monster in your GY; Special Summon it, but it cannot activate its effects. A "Mathmech" monster that was Synchro or Xyz Summoned using this card on the field as material gains the following effect.
● Once per turn, during the turn this card was Special Summoned, when your opponent activates a card or effect (Quick Effect): You can negate that effect.
You can only use each effect of "Mathmech Diameter" once per turn.