Advanced format ruling
Necroface
Card effect (current official text)If this card is Normal Summoned: Shuffle all banished cards into the Deck. This card gains 100 ATK for each card shuffled into the Main Deck by this effect. If this card is banished: Each player banishes 5 cards from the top of their Deck (or their entire Deck, if less than 5).
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.