If multiple players have drafted a card named Canal Dredger, each player chooses which of those players to pass the last card to.

You draft all cards passed to you this way one at a time. If you also drafted a Cogwork Grinder, you may remove any of those cards from the draft.

If you draft a card named Canal Dredger, you pass the last card from each booster pack to yourself. In other words, when you are passed two cards, you draft both of them.