4) Shipping expectations are written like an adult ProxyMTG separates: production time (often ~2 business days), and transit time (often ~37 business days in the U.S., carrier-dependent) So if you order on Monday, arrives next day is not the default promise
Common options include standard card stock, laminated cards, PVC, or other specialty substrates
Will this Basic Psychic Energy hit those heights
All you need to know is that at the beginning of your uptap step, any permanent that is phased out phases back in and vice versa
You can find workarounds to play with them in paper, though it takes some work and they can't work exactly the same, or you can just ban the Alchemy cards for paper gameplay
On the other hand, have you seen the no-art basic lands