When this card is activated: You can Tribute 1 "Crusadia" or "World Legacy" monster; Special Summon 1 "Crusadia" or "World Legacy" monster with a different original name from your Deck or GY. If you control a "Crusadia" Link Monster, your opponent's monsters cannot target monsters for attacks, except Link Monsters. You can only activate 1 "Crusadia Vanguard" per turn.