YuGiOh! - Dr Aurum Goldstrike

If this card is Normal or Special Summoned: You can Special Summon 1 Level 4 or lower LIGHT Machine or Warrior monster from your hand in Defense Position. If this card is destroyed by battle or sent to the GY by an opponent's card effect: You can banish this card from your GY; Special Summon 1 Level 4 or lower LIGHT Machine or Warrior monster from your Deck in Defense Position. You can only use each effect of "Dr. Aurum Goldstrike" once per turn.