Farewell is possibly the best boardwipe in the whole of commander, with its versatility and ability to exile (not destroy, importantly) whatever you need at that moment while protecting the other types you want to keep around
This range of effects means theres a graveyard hate card for every deck in every situation
Patrolling Peacemaker rewards you when your opponents commit crimes, which is bound to happen a few times over the course of a game
See the complete list of additions from Antiquities, Arabian Nights, Legends and The Dark
And it gradually grows over time with its morbid ability, becoming more of a problem as other creatures die
Sometimes, a card is irrelevant because its use case is too specific and meta archetypes have no way of accessing it during their normal combo lines