A little confused? The deck list you're looking at is from the Momir Basic format on Magic Online. A world of fun, Momir uses a Momir Vig, Simic Visionary Avatar. Rather than play spells, your deck is entirely basic lands. Your avatar allows you to "cast" your lands as creatures; you simply pay an amount of mana and discard a land and receive a random creature of that converted mana cost, pulling from all of Magic Online. That means that for seven mana, you can get something awesome like Platinum Angel, or lose instantly from something like Phage the Untouchable! It's a great break and an easy format to get into.