R.B. Lambda Cannon

If this card is Normal or Special Summoned: You can target 1 "R.B." monster in your GY, except "R.B. Lambda Cannon"; add it to your hand. While this card is linked to an "R.B." Link Monster: You can pay 1200 LP; destroy this card, and if you do, look at your opponent's hand, then you can Special Summon 1 monster from it to their field, but negate its effects. You can only use each effect of "R.B. Lambda Cannon" once per turn.