Giving your Aethersphere Harvester +4/-4 because you have exactly four artifacts in play means you now have a 7/1 flying lifelink creature
Its by far the most expensive filler card for Magic: The Gathering and lets just say we hope that guy finds a buyer for that price
The problem would have been resolved with printing pure Basic Energies, commons, uncommons and likely also rares sheets with the same design as those later used for Unlimited in appropriate quantities taking the existing surplus into account
These are, in my opinion, permanently tainted by greed and secrecy
The Phase Strip Above your cards are symbols representing the phases of your turn (untap, first main phase, attack phase [also your avatar], second main phase, end step), which will be illuminated orange to represent what phase that youre currently in
I was hesitant about whether to include them or not, but they played a large role in my original setup process