pokemon sun & moon cosmic eclipse booster box - Pokemon Sun & Moon Cosmic

Whenever you roll Chaos, until a player planeswalks, you can't lose the game and your opponents can't win the game

It gets even better if you build around it by playing spells you especially want to copy, but assuming you are in the right colors, Dualcaster Mage is the first card I'd put in every Naban, Dean of Initiation Commander deck I build

Are common Pokmon cards worth collecting or investing in, or should I only chase rares

You may also get an art card in the pack, but this does not count towards the 14 playable cards

Spirit Sister's Call is a fine recursion option if you have a bunch of extra permanents like creature tokens, but this deck doesn't include many options to enable it