You can only cast it after you discard a card, but once its in play, it tutors The Underworld Cookbook and uses food permanents as deadly removal
Soul of Windgrace fits naturally into these strategies as both a reward for sacrificing/discarding lands, since it returns them to play, and as a discard outlet for other threats like Titania, Protector of Argoth and The Gitrog Monster
Also, I won't be covering any uncommon commanders here
Some number of copy spells are needed for this card to start going off, and an unflipped Primal Amulet almost guarantees that you will be casting most of your library
Mediocre removal spells need love, and great players recognize that sometimes a mediocre removal spell in the right place, at the right time can turn the tide of an entire game (or at least one combat step).
You know this card, what it does, and how good it is