Advanced format ruling
Sillva, Warlord of Dark World
Card effect (current official text)If this card is discarded to the Graveyard by a card effect: Special Summon it from the Graveyard, then, if this card was discarded from your hand to your Graveyard by an opponent's card effect, your opponent returns exactly 2 cards from their hand to the bottom of their Deck, in any order.
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.