Treetop VillageTreetop Village is a green mana producer, and MutavaultMutavault and Mobilized DistrictMobilized District are highly efficient
It doesnt even produce mana, but the ability to draw two cards and then discard three is the ultimate engine for graveyard interactions
The core of Roaring Moon ex is this: discard Darkness Energy with Ultra Ball, Radiant Greninja, or Squawkabilly ex (among others), then attach Energy from the discard with Professor Sadas Vitality and Dark Patch
When a dinosaur enters the battlefield or your control (or Pantlaza herself ETBs) you exile cards from the top of your library until you hit a nonland card with mana cost equal to or less than that creature's toughness
Perfect fit inner sleeve, then into a rigid holder
Lastly, I do not understand why the game gives out only 5 cards per pack, and think it should be changed back to 10