Oversoul
The Tentacled One
Serra Avatar
First reason: I need to keep nominating cards that start with "s."
Real reason: Well, there are other cards in Urza's Saga I like more, especially because there are so many broken cards. But I honestly don't think any of them represent casual magic as much as Serra Avatar. It's a big creature that you can easily make bigger. It has cool interactions with other cards. And it doesn't die like a lot of other big creatures. Instead it just goes back into your library. What could be better?
Tag Guard
First reason: I need to keep nominating cards that start with "s."
Real reason: Well, there are other cards in Urza's Saga I like more, especially because there are so many broken cards. But I honestly don't think any of them represent casual magic as much as Serra Avatar. It's a big creature that you can easily make bigger. It has cool interactions with other cards. And it doesn't die like a lot of other big creatures. Instead it just goes back into your library. What could be better?
Tag Guard