>>37339927>what's the safest place to buy boosters/booster boxes?Local stores that are popular, probably the same stores as your locals
>is it fairly normal to just copy meta decks to playYes
>am I gotta get laughed out of my locals?You'll be playing with mostly children
>sleevesDragon shield sleeves, or double sleeving character sleeves. Youtube best sleeves for cards and you'll find tolerian college or something has good reviews and options.
>binders>dex bindersThese are good. Youtube similar thing as sleeves from same guy.
>playmatsI don't have any myself, but I don't believe anything matters for these