Shards of dalaya, the very old eq emulator had very...stringent charm rules and charm over level 50 only lasted like 2 minutes on a 6 minute cooldown. Most raid zones either featured a token level 50 mob to charm because it plays into a fight gimmick. Or no charm at all was available for long term dps. Only short charm for cc or gimmicks.
So they evolved in other ways they had a proactive package of insanely useful and powerful buff which lasted 10 to 30 seconds.
Examples
Jinx / hex. Cheap spells. Mob misses next melee
Caster curse: 10m cooldown, mob takes x percent more damage. For coordinating burn phase
Melee curse. Same but for melee hits.
Somatic Bond. Cast on a melee. Every time he hits a mob, for 10 or 30 seconds (forget. Its been like a decade), the enchanter emulates that hit, but with his stats. So the enchanter could keep this up on 5 people. It was common for enchanter to top dps chart, but it also greatly enhanced combat stats so melee man got some numbers out of it too. There was an aa that made the enchanter, if he cast somatic bond on himself, did not miss in melee. The game was rife with caster only baller weapons, made under the assumption casters rarely hit. Like(
Summoned: Fist of Gurok - SoDWiki)
Avatar of fucking destruction. Just like somatic bond, but for casters. Use it on the top 2 wizards. You can only keep it up on 2 people due to cooldown restriction
They had an aa to refill mana. So In a hard fight or raid , the chanter would max out bond/avatar then curse and the numbers would climb
Also a key piece of gear that dropped was this...runic bracer that summons a golem. A level 50 chonker you could charm. They coded it to poof if you tried to use it on a raid target. But great for groups.
They also had runes without durations. They would last till used. They had a raid wide rune, a group rune. And a single target rune. We would spam rune in dicy fights on the tank. Or spam ae rune for whirlwind bosses. Horrific mana inefficiency but hey.
They had 3 single target memes. Normal. Half second cast version thst was resistable, and longer cast time, unresistable
I imagine I forgot other cool features. It was a very proactive class that could cc quite well, or shift into augmenting the dps.