You can send 1 "Mathmech" monster from your Deck to the GY, except "Mathmech Circular"; Special Summon this card from your hand, also you can only attack with 1 monster for the rest of this turn. If another "Mathmech" monster(s) is Normal or Special Summoned to your field while you control this monster: You can add 1 "Mathmech" Spell/Trap from your Deck to your hand. You can only use each effect of "Mathmech Circular" once per turn.