Mathmech Sigma
Card Number: QCCU-JP169
Card Type: Effect
Level: 4
Rarity: UL
Attribute: Light
Types: Cyberse, Tuner
ATK: 1000
DEF: 1500

If you control no monsters in the Extra Monster Zone, while this card is in your hand or GY: You can Special Summon this card, but banish it when it leaves the field, also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Cyberse monsters. You can only use this effect of "Mathmech Sigma" once per turn. If this card you control is used as Synchro Material for a "Mathmech" monster, you can treat it as a non-Tuner.