Pendulum Scale (Common)

If you have 2 cards in your Pendulum Zone, apply this effects based on the difference between their current Pendulum Scales.
? 0: Destroy 2 Spells/Traps on the field.
? 1 to 3: Add 1 Level 2, 3 or 4 Pendulum Monster from your Deck to your hand.
? 4 to 6: Add 1 Level 5, 6, or 7 Pendulum Monster from your Deck to your hand.
? 7+: Return up to 2 cards from your Pendulum Zone to the hand, then you can Special Summon 1 Pendulum Monster from your hand.
You can only activate 1 Pendulum Scale per turn.