>>44208471None of that stuff is broken.
Dynamax doubles HP but Max Moves do not double damage, and in fact HO mons gain the least from dynamax because they lose choice bonuses while BP barely increases.
Bulky offense get the optimal benefit of the biggest boost to damage and defense.
Even stallmons gain more from dynamax than HO. It should say something where Dynamax Heatran with some def investment can live an EQ OR Max Quake from Lando-T and Garchomp.
Z-Moves by comparison were much more powerful on HO due huge boosts in damage without a corresponding boost in HP.
Airstream is the only Max Move that boosts offense while maintaining high power and no immunities. It says a lot when the most broken Dynamax abusers were Togekiss, Hawlucha, Gyarados and in natdex Dragonite and Lando-T.