"The fools thought me dead. But I built an empire inside my tomb."
—Kerrick, sleeper agent

Brink of Madness

At the beginning of your upkeep, if you have no cards in hand, sacrifice this enchantment and target opponent discards their hand.

The List

Urza's Legacy

During your upkeep, if you have no cards in hand, sacrifice Brink of Madness and target opponent discards his or her hand.

The ability only triggers if you have no cards in your hand as your upkeep step begins.

You must sacrifice Brink of Madness if possible, but the opponent discards their hand even if you can’t sacrifice it for some reason (for example, if it were returned to its owner’s hand before the ability resolved).