how do adventure cards work in mtg Top 20 "Magic: The Gathering" How does this card work?

In sanctioned play, a proxy is not a stand-in you brought from home. A proxy is a judge-issued replacement for a card that became unusable in the tournament, and it comes with tight limits: Its only issued for specific reasons (like accidental damage during the event)

If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard

40 hand-selected cards feature Ichor showcase art, while the 10 Planeswalkers of the set are given a borderless manga-art treatment

For example, the green-white deck features some of Middle-earths most iconic heroes, and encourages players to attack the enemy in a united front

God-Pharaoh's Statue