The standards are somewhat high as theyre looking for mint condition cards, but it absolves the seller the hassle of selling small-time cards for $0.50 on eBay and having to pack them up and ship them out one at a time
Ensure sellers have good ratings and detailed listings
Outside of grading or authenticating the sealed card (I dont like the way they fold the top and bottom flaps back behind the card), I was thinking toploader, but was worried about the back flap that goes down the middle of the card leaving an indentation long term
you'll untap, attack, and win
Protection makes it so the equipped creature can't be targeted, blocked, or dealt damage from anything except for colors in your commander's color identity, which lets it get in for much more damage
Gaining control of an opponent's threat is invaluable and arguably better than removal