>>32361889I once used Meganium in my SS walkthrough, and while it has really helped me out in important battles like Red, I feel like it can still use one more thing that can make it more usable. Give it more defenses, a better Hidden Ability or let it have more moves that support the entire team.
As flawed as Meganium may be in battles, though, it's still one of my favourite Pokemon. I'm not sure what I like about it exactly, but I just do.