Command Knight [CT1-EN003] Secret Rare Evil You can only use this

You can only use this effect of "Medusa

Set: EX: Dragon Type: Lightning Rarity: Ultra Rare Retreat cost: Colorless

or Sea Serpent monster from your Deck whose Level is less than or equal to the combined original Levels of the sent monster(s)

you can send 1 of those monsters to the Graveyard to inflict damage to your opponent equal to its ATK

Command Knight [CT1-EN003] Secret Rare Evil You can only use thisSet: 2004 Collectors Tin Card type: Effect Monster Rarity: Secret Rare Attack: 1200 Defense: 1900 As long as at least 1 other monster exists on your side of the field, your opponent cannot select this card as an attack target. Also, as long as this card remains face up on the field, increase the ATK of all Warrior Type monsters by 400 points.