It does a good impression of Edric, it does a good impression of Uril, the Miststalker and it can do a good impression of a Squirrel tribal commander if you need it to
There are a number of other options for lands here, including Starting Town and Hushwood Verge
The potential of a 2-mana dork that taps for 5 mana is obscene
Heroes United Stand up with the Heroes United Scene Box and do your best to be worthy of the Avengers
There's a few ways to prevent you from dying before your trigger resolves, most notably Glacial Chasm, Platinum Angel, and Angel's Grace Can't Die
How many of them you play will vary depending on your budget, the colors of your deck, and your strategies and playstyle