Caius the Shadow Monarch [SR01-EN004] Common Mountain Plains but other monsters can not

but other monsters can not attack

Face-up Level 4 Normal Monsters on the field cannot be destroyed by card effects

Remove target creature defending player controls from combat

Set: Chronicles Type: Land Rarity: Rare Whenever City of Brass becomes tapped

Set: Portal Three Kingdoms Promos Type: Legendary Creature — Human Soldier Warrior Rarity: Rare Cost: {5}{R} Haste

Caius the Shadow Monarch [SR01-EN004] Common Mountain Plains but other monsters can notSet: Structure Deck: Emperor of Darkness Card type: Effect Monster Rarity: Common Attack: 2400 Defense: 1000 If this card is Tribute Summoned: Target 1 card on the field; banish that target, and if you do, inflict 1000 damage to your opponent if it is a DARK monster.