Its certainly a nice idea to build around and encourages filling your deck with expensive cards
However, in many metagames people will swing at her to force damage or trades so that she'll be more expensive with Commander Tax
As the earthbend ability resolves, that land becomes a 0/0 creature with haste that's still a land
Still, if you are a Green Auras deck and you're not interesting in suiting up your commander with them (can't think of any), this might be a good option
Between the number of token enablers available in green and the disruption and card draw options in blue, upgrading this deck would be both a fair challenge and a joy to undertake
You can exile cards, and then cast them this turn, so you get the ability to cast the occasional card, or drop the occasional land with your Human Archer Rogue