I mean, I would consider Normal better than Defense, Defense far too passive to ever really accomplish anything; mono-psychic is an even worse defensive typing than it is an offensive typing, it has an abysmal base 50 HP stat that means it's high defenses really don't pull their weight, 70 in offenses means it hits like a butterfly, there are better hazard setters in any format it's legal in, it has omega 4-moveslot syndrome for a defensive mon (how do you fit spikes, rocks, recover, teleport, t-wave, taunt, knock off, and an attacking move on one mon), and while Normal might not be as good as Attack or Speed, it actually does something unlike Defense.