Castle Walls [YSD-EN033] Common Scientist If this Ritual Summoned card

If this Ritual Summoned card is destroyed by battle or card effect: You can Special Summon 1 "Chaos" or "Black Luster Soldier" Ritual Monster from your hand

Set: Soul Fusion Card type: Normal Spell Rarity: Ultra Rare Add 1 "Noble Knight" monster or 1 "Noble Arms" card from your Deck or GY to your hand

1 Solemn Simulacrum

1 Stolen Identity

but the opponent's monster was not destroyed by the battle: You can banish that opponent's monster

Castle Walls [YSD-EN033] Common Scientist If this Ritual Summoned cardSet: Starter Deck 2006 Card type: Normal Trap Rarity: Common Attack: 0 Defense: 0 Increase the DEF of 1 face up monster on the field by 500 points until the end of this turn.