Harmonize has 38 printings.
Eternal Masters
Legendary Cube Prize Pack
Duel Decks Anthology: Elves vs. Goblins
Duel Decks Anthology: Garruk vs. Liliana
Commander 2013
Commander 2011
Magic Online Theme Decks
Archenemy
Duel Decks: Garruk vs. Liliana
Magic Player Rewards 2008