Noctowl (8/123) [HeartGold & SoulSilver: Base Set] Karn destroy all monsters your opponent

destroy all monsters your opponent controls and inflict 500 damage to your opponent for each monster destroyed by this effect

for each attacking creature you control

Set: Secret Lair Drop Series Type: Creature — Rat Rarity: Rare Cost: {1}{B} Pack Rat's power and toughness are each equal to the number of Rats you control

if an opponent discarded a card this turn

Set: Visions Type: Enchantment Rarity: Rare Cost: {2}{G} Players can cast spells and activate abilities only during their own turns

Noctowl (8/123) [HeartGold & SoulSilver: Base Set] Karn destroy all monsters your opponentSet: HeartGold & SoulSilver: Base Set Type: Colorless Rarity: Holo Rare Retreat cost: Colorless