If your opponent controls 2 or more face-up monsters, except WIND monsters, those monsters cannot target this card for attacks. You can only use each of the following effects of "Kaitoptera" once per turn. During your Main Phase: You can add 1 "Polymerization" from your Deck to your hand. If this card is banished: You can Special Summon it, then you can add 1 "Polymerization" from your GY to your hand.