Finish changes the result Foil, reverse foil, etched, cracked ice, refractor, and parallel finishes can change how a card is categorized
Technically her ultimate ability makes her overall commander color identity anything , so you could run any card you want
add 1 WATER monster from your Deck to your hand with the same Type but 1 Level lower than the revealed monster, then you can change this card to face-down Defense Position, also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters
If you can pay up front, it ends up like a Crop Rotation but for two basics, which is a good rate
Non-Foil cards have a glossy front finish instead of matt in the original Magic The Gathering cards, with the cards back remaining the same
It doesn't sound like a lot, especially when you have cards like Keeper of the Accord, which can do similar things every turn, but consider this: the land doesn't have to be a basic Plains, and it doesn't have to enter tapped