All targeted monsters must have the same Rank
Wizards has not said which cards have been affected or how the error took place, so we don't know whether the mistakes will be consistent or totally random
Card Q&A Q1145 Mar
Woodweaver's Puzzleknot: [Category 1] 2 mana in, 3 Energy out, then 3 mana in, 3 Energy out
He also gives you reach, as for 1R you can sacrifice a goblin to deal two damage to any target either an annoying creature in your way, or the last few points of damage to your opponent
Now, seven years on, hes been relegated to fringe playa 0/2 is too easy to deal with, and keeping five cards in your graveyard is a bit of a challenge in a world where everyone has access to Scavenging Ooze, Graveyard Trespasser, or Unlicensed Hearsebut that painful autumn of Moist Jund and Wet Abzan endures