There are plenty of Golgari and Jund decks built around sacrificing your own creatures that could get a lot of use out of this card
In other words, a common appearing five times on the common printing sheet has 5x the total number of copies in circulation as a common appearing just once on the printing sheet, and was 5 times more likely to show up in your booster pack
With decent stats, shes key to slowing down your opponent, and can be a good target for Ready effects
Go-tall Voltron decks like Syr Gwyn, Hero of Ashvale and Akiri, Line-Slinger love a card like this
So, a 3cmc commander will cost 5cmc the first time they die, 7cmc the second time they die, etc
Use the Oracle card reference at Gatherer.Wizards.com to determine whether a specific card has received such errata