Knowledge Vault is a Magic: The Gathering card. Compare listings from Singapore Magic: The Gathering sellers on CardJio, then jio them on WhatsApp.
{2}, {T}: Exile the top card of your library face down. {0}: Sacrifice this artifact. If you do, discard your hand, then put all cards exiled with this artifact into their owner's hand. When this artifact leaves the battlefield, put all cards exiled with it into their owner's graveyard.
{2}，{T}：牌面朝下地放逐你的牌库顶牌。 {0}：牺牲此神器。若你如此作，则弃掉你的手牌，然后将所有以此神器放逐的牌置于其拥有者手上。 当此神器离开战场时，将所有以它放逐的牌置入其拥有者的坟墓场。