Clone [Foreign Black Border]Set: Foreign Black Border Type: Creature Shapeshifter Rarity: Uncommon Cost: {3}{U} You may have Clone enter the battlefield as a copy of any creature on the battlefield.

the Necromancer

Set: World Championship Decks 1999 Type: Instant Rarity: Uncommon Cost: {1}{G} Buyback—Sacrifice a land

Set: Zendikar Type: Artifact Rarity: Mythic Cost: {6} Eternity Vessel enters the battlefield with X charge counters on it

" —Niv-Mizzet

Set: EX: Deoxys Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

the Ruin Sage

The controller of each of those artifacts gains life equal to its mana value

"The Haunted Palace"

Fighting Rarity: Ultra Rare Retreat cost: Colorless

Planeswalker (1)

Deep within the Cabal's vault

then put all cards exiled with Knowledge Vault into their owner's hand