While Beanstalk Giant is on the battlefield, just ignore the Adventure and all its text
Land Auras Auras that enchant lands to provide more mana are great for getting ahead of curves
Now, all of that being said, there are a few downsides to Pixelborn that will be a pretty big hurdle for a really large audience to ever grow around it
A New Path to Victory
As soon as Decimator Beetles ability resolves, state-based actions are checked, and the game sees that you have both counter types on your Servant, so one +1/+1 counter and one -1/-1 counter are removed at the same time (resulting in Servant dying)
Commander is one of Magic: The Gatherings most popular formats, so it makes sense that Foundations, a set meant to serve as a hopping-on point for the game, would be loaded with all sorts of cool new and returning Legendary Creatures