Being able to completely wipe the entire board of any nonland permanent is ridiculous in a format like Commander and Miku, Child of Song will not hold back any mercy if you face her as a commander
An interesting side effect of hybrid mana is that it lets you treat heavy mana costs in two-color decks like you normally treat monocolor
It's very strong in multiplayer since you are more likely to be running at least one opponent with Green ramp and two-drop ramp spells like Rampant Growth and Farseek are getting added to ramp brews in Commander over conventional ramp like Cultivate and Kodama's Reach, so on the turn you have three mana, one player casting a two mana ramp spell with an extra land is pretty likely, and if not, then someone probably cast Explore spells or dropped an Exploration and an extra land or two
And while it may not have ever seen competitive play, the Charizard from this set is certainly memorable, and a fantastic collectors item
They responded that this was considered extensively within the design team, but they dont believe that pre-releases will be negatively impacted given the overall higher value from the new boosters
In comparison, a 1901 Claude Monet painting Vetheuil, effet du matin was sold for about US$12 million at Sothebys in April