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Mathmech Diameter
LIGHT · Cyberse / Tuner Effect Monster · Level 4 · ATK 1000 / DEF 1500
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.
Is it legal?
TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Rare (R)
Genesys0 points
Price
About $0.17–$2.06 across printings and stores (as of Oct 8, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)
Played in tournaments
In 1 recent tournament lists, mostly Mathmech (1).
Printings
| Set | Code | Rarity |
|---|---|---|
| Rise of the Duelist | ROTD-EN028 | Common |
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