A lot of people defending the other stats, but the man’s right.
Some of the stats work. That doesn’t mean they’re not useless.
Agility is semi-useful for running away/chest farming, but since it doesn’t work properly when running, a full set is less than +25% running speed. In terms of combat, a dull amulet is giving you +5% speed, and a wizard hat gives +10% damage. Even when the best agility item in the game is competing for the third accessory slot with an item that gives less than half the raw stats, it’s still losing.
Casting speed amulets are +12%, but only for casting time (endlag isn’t affected). It’s a viable third accessory, but that’s not high praise for the best accessory in the game for the rarest stat in the game.
Everything else is too ineffective to be remotely useful in combat when compared to power or defense. Stats like magic size can be fun (if you do a bunch of not fun grinding to get a good set), but that still doesn’t make them useful.
Stats are just useless, and are going to continue to be useless for the next 100 levels.
Wind gets a knockback boost from magic size. That boost is bigger than the one from knockback.
The only magic you’d ever want to build knockback on gets more knockback from magic size than knockback.
That’s how little thought was put into some of these stats.