Bag of Holding

{2}{t}: Exile an artifact card from your hand.
Draw a card. Bag of Holding doesn't untap during your next untap step.

{1}{t}: Return a card exiled with Bag of Holding at random from exile to your hand.
Bag of Holding doesn't untap during your
next untap step.

It's said an entire constellation was once absorbed
by a faulty bag of holding.