Rather than combo decks having to rely on something like Laboratory Maniac, which was easier for the opponent to disrupt, Oracle winning the game when it enters the battlefield means that even if the Oracle dies in response, its too late
By the time you reach ascension a 2/2, doublestriking or otherwise, is going to be super low impact unless you also happen to have some equipment to put on it
I know, the FFVII Summon: Knights of Round gives 12, so thats what you get, on top of an indestructible 3/3 creature
Design-wise they're whimiscal, straight out of a children's storybook with a clam as the main part of the face and the 'mouth', with goggle-eyes and a humanoid body glued onto it
Atop the tower is a taiko drummer pounding away, and a woman starts the Bon Show by singing a cute Pokmon song for the kids in attendance, instructing them to parade around the tower and perform some Pikachu dance moves