Probably the spell effects.
I primarily play casters in any game that I can and I never really feel powerful no matter how flashy they are. It's like there's no weight to them, just a bunch of particles and sparkle.
In BG3, even something as simple as a bread-and-butter Eldritch Blast looks immensely powerful, especially when coupled with the skills that add damage and knockback to the spell.
Yes! The spell animations and sound design are crisp. Landing a bone-crunching Eldritch Blast is so satisfying.
