You can't remove cards from the draft that you've already drafted. Only cards drafted after you draft Cogwork Grinder may be removed this way.
Cogwork Grinder
No other player may look at the cards you remove from the draft (unless Cogwork Spy allows a player to).
If a Cogwork Grinder owned by another player enters the battlefield under your control, the number of counters it enters with will be based on the number of cards you've removed from the draft with Cogwork Grinders, not the number its owner removed. Unless you also drafted Cogwork Grinder, this will be 0.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Jasper Sandner
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
