Golden Lord Wolnir

Indestructible
When Wolnir enters the battlefield, creature X treasure tokens.
Sacrifice Wolnir if you control no Treasure tokens.
Whenever you sacrifice a treasure tokens, create
a 1/1 Skeleton creature toke with "Sacrifice this creature if you control no Treasure tokens"
—
Wolnir was once a noble lord, but greed drove him to madness