The Stalking of Judy Crone

As an additional cost to cast The Stalking of Judy Crone, haunt target creature you control.
As long as you control a haunted creature or The Stalking of Judy Crone is unsolved, you must pay {1} to attack or block with a creature.
At the beginning of the end step of a turn The Stalking of Judy Crone was solved, sacrifice it. Then, you get an emblem with "Spells in your hand cost {1} less to cast."