The -7 is akin to the -12 of Jace, the Mind Sculptor because youll use it after the game is pretty well locked up
Since targets are chosen before costs are paid, Valgavoth's Faithful isn't a legal target for its own ability because it won't be in the graveyard at that time
An easy place to start is adding some of the other additional land drop effects, which were a little too pricey for me to go deep on: Azusa, Lost but Seeking, Kodama of the East Tree, Dryad of the Ilysian Grove, and Exploration are all excellent and will help you make the most of your explore triggers
Singles might be the best option
This state-based action doesn't use the stack.
A new set means new cards, and we're kicking off our review with the multicolor cards that serve as signposts to let you know what direction each color pair is trying to build in