Sylvan Library [Commander's Arsenal] XY55 and cannot be destroyed by

and cannot be destroyed by battle except with another "Number" monster

toss a coin: •Heads: Each time your opponent Normal Summons or Sets a monster

Set: Premium Gold: Infinite Gold Card type: Effect Monster Rarity: Gold Rare Attack: 1600 Defense: 1200 If you control a monster that is not a "Burning Abyss" monster

Set: Duelist League Promo Card type: Normal Trap Rarity: Rare When your opponent declares an attack while the only monsters you control are Machine-Type "roid" monster(s): Draw 2 cards

also its ATK and DEF become 100

Sylvan Library [Commander's Arsenal] XY55 and cannot be destroyed bySet: Commander's Arsenal Type: Enchantment Rarity: Rare Cost: {1}{G} At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.