REDU format ruling
Trap Dustshoot

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Activate only if your opponent has 4 or more cards in their hand. Look at your opponent's hand, select 1 Monster Card in it, and return that card to its owner's Deck.
Rulings
- If playing online, you may take notes of your opponent's cards. In real-life Duels, you may not. (This disparity is due to the nature of online play, as it's impossible to enforce note-taking: Online, you could screenshot the cards in your opponent's hand or write them down in a notepad, and nobody would be able to tell that you're note-taking).
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.