Sealed Treasure

During your upkeep, you may put a key counter
on Sealed Treasure.
{3}, {t}: Sacrifice Sealed Treasure: Draw X cards, then choose and discard X cards, where X is the number of key counters on Sealed Treasure.
"To be satisfied with a little, is the greatest wisdom;
and he that increaseth his riches, increaseth his cares; but a contented mind is a hidden treasure, and trouble findeth it not."
- Akhenaton