We should uhhhh... talk about Rathen's secret

[Sundance]

IMO wizards are supposed to have op spells.

I think your definition of OP is a little skewed. OP is not a good thing. Spells should be strong. A good spell that's strong but not OP is Fireball. It can be dodged and it can backfire. In the days of lore before it was changed it used to AUTOAIM. That's OP. It was a common thread topic until the aim function was eventually introduced.

Wizard also doesn't have all strong spells, it's such a mix between downright underpowered and OP/broken spells. Underpowered and underutilized is Ice Burst, Bullsrush, Shocking Touch and Animate Dead. OP/broken is Empower, Rathen's Secret and oddly Prismatic Spray. The latter is broken because its original idea was meant to be a funky wizard shotgun spell with its conical shot. Instead, wizards stun and pointblank players into a deep crit, rendering Shocking Touch pointless.

The end result is an unbalanced antagonist which has enabled a meta and has become increasingly frustrating to fight, to the point where you either give up, or you chemical bomb them with fluorosulfuric acid, which is no fun for anyone. 

You're also completely wrong about "a few wizards" using Rathen's secret. A single capable wizard can and will depopulate the entire station with the correct set up.

I'm sorry to be such a debbie downer, because there's honestly much to enjoy about wizard. It just really needs more TLC sooner rather than later, with a closer inspection at each spell and how they play off each other.