Knowledge Vault [Legends] Modern Event Deck 2014 it became a haunted moor

it became a haunted moor

"I write upon clean white parchment with a sharp quill and the blood of my students

{T}: Put up to X +1/+0 counters on Clockwork Beast

Set: Beta Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a green spell

Other Angels you control get +1/+1 and have lifelink

Knowledge Vault [Legends] Modern Event Deck 2014 it became a haunted moorSet: 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.