Dynamax doesn't even look anywhere near as good as either Z-Moves or Megas. At least those two built up on old mechanics, like hold items and forms. Dynamax just looks like a lame mode there's only used in Gyms and wild Pokémon, but the latter you have to team up with 3 randos. Imagine how easy it is to screw someone up in a Dynamax battle! Let's say you have your starter, someone has a Magikarp, someone else a Raichu and someone else a Gyarados. What if the Magikarp person uses Dynamax on their Pokémon and only uses Max Guard, effectively trolling everyone else? Plus I like the designs of Megas way more than Giant version of *insert Pokémon here*.