As with all the Learn cards, these underwhelming spells are enhanced by stapled on card advantage
Its the most expensive option on this list (~$27) because its that good
Another way is to change tactics (and decks)
But you can use it to, say, rearrange the power distribution of your team to destroy your opponents blocks, ensure that your Sword of Whatever and Stuff is equipped to an unblocked creature, and even use it defensively to make a meager blocker much stronger after you attacked with the creatures holding all your buffs
Continuing the horror theme are cards reimagined in the style of comic-book front covers for Creepshow, the cult 80s movie heavily inspired by fifties comics like Tales from the Crypt
If you do, exile the top X cards of your library, where X is the number of skewer counters on Rotisserie Elemental