Eventually, you can cast Retract to rebuy all your Artifacts, draw tons of extra cards, and cast Grapeshot for the win
Emblems are used solely for planeswalker cards and are printed on cards like tokens, but usually at low frequency as they are created only by planeswalkers (which show up at mythic rare)
Sadly, many of the early Japanese cards are without identification codes (instead, their Pokedex number) and so are much harder to track
Although the Standard bannings remained legal to play in Pioneer, the format's environment proved too efficient for the Temur midrange or Aetherworks Marvel decks to ever gain a sustainable foothold
Fill in your curve with Treasure producers like Professional Face-Breaker and Ragavan, Nimble Pilferer, and you can easily hit the ground running
Outside of Storm, I'd much rather drop by three once since you are guaranteed to get that rather than the mana needed for other things