The pick-up-and-play system uses existing cards, plus a smattering of new ones, for a collectible deck experience thats aimed squarely at competitors like KeyForge
Spirited Companion and Inspiring Overseer are only 2 of a few such white Creatures out there, and having 4 of each in specific decks can help keep the engine running
If you see CW1, you don't know whether it is the first common white card or perhaps the tenth and the 0 was left off
That is a made up information and super easy to speculate because it fits the theme of the sets
Counters won't be put on the object, but if the original event is entirely replaced (such as by applying Soul-Scar Mage's replacement effect), the original event won't happen
It's still a bit much to get multiple Commander decks per release, especially when the number isn't consistent (some sets have 2, some have 4-5)