This makes them notoriously difficult to kill as well as being very memorable experiences the first time you run into one
Even the starting point here a 3-mana 2/1 with First Strike isnt bad, but any time you attack with artifacts in play your opponent is going to have really hard decision to make
I also use at least two copies of Acorn Harvest, because it acts as a super Chatter later in the game (preferably after Squirrel Mob is on the table)
Probably not ready for Modern primetime, but theres always something you want to drop on the last end step before your turn in Commander
This is a great finisher for all kindred decks that love going wide like Faeries, Elves, Goblins, and heck, even Vampires
Return target creature card from your graveyard to your hand