Mathmech Sigma

You may cast Mathmech Sigma from your graveyard by paying {1}{w/b} instead of paying it's
mana cost, if cast this way and leaves the field as a creature, exile it. You can only cast cyberse cards from your sideboard. Activate this ability once each turn.

This creature counts as a non-tuner if sacrificed to cast a synchro creature with "Mathmech" in it's
name.