Silfer the sky dragon is the second card made known. You should tribute three monsters to a normal Summon card. The ATK and DEF of this card become the figure of cards in your hand x 1000. It is also treated as dragon-type monster. When it is special summoned from any player's graveyard, the card is given back to its controller's graveyard at the end phase of that turn. If it is Special Summoned in defence position while your challenger has attacked with a monster, you can change the attack aim to this card.