Mathmech Diameter
Rise of the Duelist Premiere! promotional card (ROTD) · #17946349 · Common · yugioh
Card: Tuner Effect Monster
ATK / DEF: 1000 / 1500 · Level 4 · LIGHT
Archetype: Mathmech
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.
DeckSpec Pricei
$0.49
Condition
Weighted composite · smoothed against one-off swings.
Current prices
Condition
normalNM
| Cardmarket | ≈$0.48 | 2026-08-09 |
| coolstuffinc | $1.99 | 2026-08-09 |
| ebay | $1.80 | 2026-08-09 |
| TCGplayer | $0.46 | 2026-08-09 |
Non-USD sources (e.g. Cardmarket, EUR) are shown converted to USD at €1 ≈ $1.15 — indicative, not an exact quote.
Prices update daily · last checked Sun Aug 09. Indicative, not offers — how we price.
Price history (last 180 days)
Condition key
NM Near MintLP Lightly PlayedMP Moderately PlayedHP Heavily PlayedDMG Damaged
Recorded prices are Near Mint; LP–DMG are estimated from standard hobby multipliers (foils discounted more steeply) — a guide, not a market quote.
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