Sunken Lockbox

Vanishing 2 (This permanent enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Sunken Lockbox is put into a graveyard from the battlefield, if it had no counters on it, create three Treasure tokens.
The humans that lived before the flood left behind countless relics, all very lucrative among looters.