Faust, Seeker of Soulstones

Repurpose - {t}, {r}: Sacrifice an artifact, draw two
cards then discard a card.
Whenever you discard an artifact card, you may
untap Faust, Seeker of Soulstones.
Whenever an artifact is put into your graveyard
from anywhere Faust, Seeker of Soulstones gets
+1/+1 until the end of the turn.