My imp's fireballs now get around 40% of the bonus spell damage that they did at their height. That's a very rough estimation.
Edit: I noticed a much slower cast rate - turns out Improved Fireball talent now only reduces cast time by 0.5 sec at 2/2.
So at my gear level of +415 spell damage, my imp does roughly the same damage as my felguard.
I'm thinking the two-pronged nerf was a bit much at this point, but maybe that will change with gear.
Edit: I noticed a much slower cast rate - turns out Improved Fireball talent now only reduces cast time by 0.5 sec at 2/2.
So at my gear level of +415 spell damage, my imp does roughly the same damage as my felguard.
I'm thinking the two-pronged nerf was a bit much at this point, but maybe that will change with gear.
Less QQ more Pew Pew