Magnet Induction
If you control a "Magnet Warrior" monster whose original Level is 4 or lower: Special Summon 1 Level 4 or lower "Magnet Warrior" monster from your Deck with a different name than the cards you control, also for the rest of this turn after this card resolves, "Magnet Warrior" and "Magna Warrior" monsters you control cannot be destroyed by battle or your opponent's card effects. You can only activate 1 "Magnet Induction" per turn.