You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) 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.
(2) 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.