Effect
Cannot be used as a Synchro Material, except for the Synchro Summon of a Warrior-Type monster. If this card is used for a Synchro Summon, banish it. When this card is Normal Summoned: You can target 1 "Noble Knight" Normal Monster in your Graveyard; Special Summon that target. If this card is in your Graveyard: You can target 1 Level 5 "Noble Knight" monster you control; reduce its Level by 1, and if you do, Special Summon this card from the Graveyard.
"If this card is used for a Synchro Summon, it can only be used for the Synchro Summon of a Warrior-Type Synchro Monster, and this card is banished when used for a Synchro Summon" is not treated as an effect.
When "Vivienne, Maid of the Lake" is used as material for a Synchro Summon, it is banished immediately. (Even if that Synchro Summon is negated by "Solemn Judgment" or similar, "Vivienne, Maid of the Lake" remains banished.)
The monster effect "(1): When this card is Normal Summoned: You can target 1 'Noble Knight' Normal Monster in your GY; Special Summon it" is a Trigger Effect. (This effect targets 1 "Noble Knight" Normal Monster in your GY.)
The effect "②: If this card is in your Graveyard: You can target 1 Level 5 'Noble Knight' monster you control; reduce its Level by 1, and if you do, Special Summon this card from your Graveyard" is an Ignition Effect. (This effect targets 1 face-up "Noble Knight" monster you control.)
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