Overrun is one of the defining green cards, a little like Death Cloud for black in that you set it up and effectively end the game with it, it is what you get as reach in green creature decks and does very well at ending games promptly
The low number of creature cards in the deck is immediately obvious
It's also in the colors of artifact support in Azorius so there are tons of cards that will love this thing
Even Vanille, an uncommon card, has a cool concept where if you are able to start a main phase with Vanille and Fang, youll summon the Ragnarok, Divine Deliverance, which combines both Vanille and Fangs cards back into one big card, perfectly fitting Final Fantasy XIIIs theme
While this is much worse if you don't have a developed board, it has the flexibility to not really care and just be an early body if you need it