For Ascension level 2, you need to reach level 500, kill 400 NPCs defeat 25 bosses deal 50 million damage and use your abilities 150 times. You’ll also need 5 Void Fragments and 2 Limitless Rings, which you can get from the Gojo boss in Shibuya Island.
Then you’ll get +10% money, +10% gems, +2% cooldown reduction, and +5% luck.