I think Mosswood may not set the world on fire, but he's just a really solid card in a lot of formats, and I think has some power in limited for sure
If your aim is to build a complete set or you simply love the process of opening packs, then buying booster packs (or booster boxes) is a fun way to go
Magic: The Gathering - Avatar: The Last Airbender - Collector Booster Box Magic: The Gathering - Avatar: The Last Airbender - Collector Booster Box Wizards of the Coast Please Note: This product is brand new & factory sealed
Which are the most valuable cards in Magic: The Gathering right now though
Yes, the Urzas Legacy foil version of Karmic Guide is $65but the non-foil version from the same set is $4
WARNING: You might think that cards from your Vault dont matter, since you can only have one copy of each card in your deck, but this is not the case