The Planar Portal Adventures in the Forgotten Realms Commander Deck set includes 1 ready-to-play deck of 100 Magic cards (2 traditional foil, 98 nonfoil), 1 foil etched Display Commander (a regular-sized copy of the commander card on thick cardstock, etched with textured foil), 10 double-sided tokens, 1 life tracker, 1 deck box (can hold 100 sleeved cards), and 1 reference card, all in reduced-plastic packaging.
Here, the requirements to combo off include milling Pili-Pala or Basalt Monolith (to give Trazyn a self-untap ability) plus any artifact which can tap to produce more than three mana at a time, producing a profitable mana loop
Ariel allows you to play Flounder Collectors Companion a little cheaper
Here are the first cards I'd add on a $20 budget: And that's it
Paradox Paradox is an ability word first introduced in the Doctor Who commander decks and is used to indicate when an ability cares about cards being cast from anywhere except your hand
As for the Wastes, this is notable as one of the few non-Eldrazi flavored versions of the card, outside of some Secret Lair products