Heavy Armored Train Ironwolf

Effect

2 Level 4 Machine monsters Once per turn: You can detach 1 material from this card, then target 1 Machine monster you control; this turn, it can attack your opponent directly, also other monsters cannot attack. If this card in your possession is destroyed by an opponent's card and sent to your GY: You can add 1 Level 4 Machine monster from your Deck to your hand.