Assassin offers more opportunities for sneak attack burst damage against enemies that either haven't taken a turn yet, or that are surprised. You use your cunning action to hide, then attack with advantage on enemies so you can get your sneak attack, and crit fish, that's how rogue combat works. BG3 doesn't appear to use flanking rules anymore, which made sneak attacking and crit fishing much easier.
However. Rogue is not the best dps. I'm not sure why people have been saying that, especially in a game where you can long rest pretty much freely, so limited resources like spell slots for smites or action surges come back frequently. I think people just like those big sneak attack dice numbers.
Last edited by Piff; 18/08/23 12:22 PM.
