Clicking any card in the deck editor will bring up a modal where you can change card edition, by clicking the "..." button you can now move cards into the sideboard
Though already discussed, Counterspell is the final powerful addition to the Merfolk deck
Yes, it is a powerful Food commander, and yes it turns other peoples creatures into Food artifacts (Karn, the Great Creator is mean in this deck.) But otherwise, this commander seems pretty bland
Sadly just adding toughness isn't particularly the most efficient usage of your mana, though
Finale of Devastation Finale of Devastation gives us the range of a tutor while doubling as a fantastic finisher if you can pump enough mana into it
This adorable friend has made so many sacrifices for my creatures throughout the years, and for that it deserves a good spot on this list