The bottom right spot is left white, and has the typewritten word "Blank" as the only identifying feature
It catches Rats and feeds them to your Cats, growing them
Ryida, Summoner of Mist Fitting in with the limited theme of landfall for Red/Green Rydia rummages whenever you play a land, and can exploit that by hastily resurrecting the various summons in the set represented as enchantment creatures
Bellwether, Assistant Mayor An uncommon card being this good is well uncommon
Theres no format to balance it for, since its as legal as silver-bordered cards, but silver-bordered cards are actually designed to be played against each other
And lets not forget the original Jayemdae Tome, the original inspiration for these decks, and this article