Knowledge Vault [Legends]Set: Legends Type: Artifact Rarity: Rare Cost: {4} {2}, {T}: Exile the top card of your library face down. {0}: Sacrifice Knowledge Vault. If you do, discard your hand, then put all cards exiled with Knowledge Vault into their owner's hand. When Knowledge Vault leaves the battlefield, put all cards exiled with Knowledge Vault into their owner's graveyard.

Signal Pest can't be blocked except by creatures with flying or reach

"The specimen seems to be broken

(The next time this creature would be destroyed this turn

{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn

create a token that's a copy of Polyraptor

Enchanted creature can't be blocked except by Walls

Dragons your team controls have double strike

dealt damage

destroy the other creature

Set: Magic Player Rewards 2003 Type: Creature — Human Wizard Rarity: Rare Cost: {U}{U} {U}{U}

Gabriel Angelfire gains that ability until your next upkeep

Set: Limited Edition Beta Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn