Tasha Preview, Wild Magic Barbarian and Genie Warlock

[ProsecutorGodot]

To be clear, "many" here means five results on a table of 50, so one in ten.

There are actually 14 results that do nothing for the Barbarian, as they cannot cast any of the spells while raging (the reason why their other 3rd level feature is no longer "cast detect magic" by the way) cannot recover sorcery points, and by proxy have no spell slots or spells to cast as a bonus action instead of an action.

Coincidentally, this makes it more likely that the Barbarian will have a bad result than if then Sorcerer rolled on the table, as almost all of these results were a neutral or positive effect for the Sorcerer.