Choose target attacking or blocking creature. Scry 3, then reveal the top card of your library. Judge Unworthy deals damage equal to that card's mana value to that creature.
2021-03-19
Destroying a blocking creature won't cause any of the creatures it was blocking to become unblocked. They won't deal combat damage to the defending player or planeswalker (unless they have trample).
2021-03-19
If the target creature is an illegal target by the time Judge Unworthy tries to resolve, the spell doesn't resolve. You don't scry 3 or reveal any card.