In the physical world, you can go to places where buyers are: stores ( my personal favorite was always La Batikueva ), tournaments, places with lots of casual play (back in the day, the malls in Caballito and Villa del Parque), gallery dealers, and open-air spaces like Parque Rivadavia
The world nurtures your creatures by letting you cast them, which nurture the land in turn so it taps for more mana and both flourish in harmony with each other
For the surprisingly low cost of eight mana, Last March of the Ents lets you cast every creature in your hand for free
The front side, Avatar Aang, is a value engine
When paired with cards like Moana, Of Motunui, you can challenge opposing characters in waves and reduce how much damage you take overall, though you may need several in play to eliminate stronger opponents