Rune-Reaver

Instead of paying Rune-Reaver's mana cost, you may exile three artifacts from your hand.
Imprint - {1}: You may exile an artifact from any graveyard.
Sacrifice an artifact: Regenerate Rune-Reaver.
Rune-Reaver has all abilities of the artifacts exiled
by it and any activated abilities of all cards exiled by imprint. These gained abilities remain on
Rune-Reaver as it moves to any zone other
than your library.