|Card Type(s):||[ Spellcaster/Effect ]|
|ATK/DEF:||800 / 1600|
If this card is in your hand: You can target 1 "Arithmage" monster you control, except "Arithmage Fermat"; its Level becomes 4 and it loses 800 ATK, and if you do, Special Summon this card. You can only use this effect of "Arithmage Fermat" once per turn. All other "Arithmage" monsters you control gain this effect.
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