Knowledge Vault [Legends] Scheme Target player can't cast spells

Target player can't cast spells this turn

and white at the beginning of your next upkeep

Set: Alpha Edition Type: Creature — Demon Rarity: Rare Cost: {4}{B}{B}{B} Flying

Set: Antiquities Type: Artifact Creature — Bird Rarity: Rare Cost: {5} Flying

It has "This creature's power and toughness are each equal to the number of experience counters you have

Knowledge Vault [Legends] Scheme Target player can't cast spellsSet: 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.