Kinnan lets you yoink a creature out of the top five cards of your library, and gets you to the 7 mana you need to activate its ability in half as much time if you source your mana from Llanowar Elves and Simic Signets
Please refer to the table below for a better understanding of how card rarities match each other across English and Japanese
I dont think this card is particularly good, but I think it has a home in a werewolf typal deck
For most players, a Play Booster box from Foundations, Bloomburrow, FINAL FANTASY, Duskmourn, Secrets of Strixhaven, Lorwyn Eclipsed or Tarkir: Dragonstorm is a safe choice
Purestrains prepare the battlefield and Broodlords ensure they can keep doing that, until eventually you have Patriarchs to come and turn their enemy's strength against each other